Heat exchange oil cooler

Abstract

The utility model discloses a heat exchange oil cooler which comprises a machine box, an oil tank body which is in a U shape in the overlook direction is fixed to the top face of a bottom plate of the machine box, and a compressor assembly and a middle supporting frame are fixed to the middle of the top face of the bottom plate of the machine box. The oil tank body comprises a left side extending tank body part, a right side extending tank body part and a transverse tank body part on the rear portion between the two side extending tank body parts, the left end and the right end of the transverse tank body part are communicated with the rear portions of the two side extending tank body parts, an evaporator main part is installed in the oil tank body, and the evaporator main part is in a U shape in the overlook view. The condenser is matched with the fuel tank main body, and the top surface of a top cover of the fuel tank main body is fixedly provided with a n-shaped condenser overlooked; the heat exchange area is increased in the horizontal direction, so that the heights of the oil tank main body, the evaporator main part and the condenser can be reduced, the occupied space in the height direction is reduced, the evaporator main part is matched with the interior of the oil tank main body, and the heat exchange efficiency is improved.

Description

Technical Field:

[0001] The utility model relates to the technical field of heat exchanger processing equipment, and more specifically to a heat exchange oil cooler. Background Art:

[0002] In current mechanical equipment, engine oil is provided inside for the normal operation of mechanisms such as gearboxes. However, during operation, its temperature will continuously rise and cooling is required. Existing cooling methods are either directly blowing air on the equipment's fuel tank for cooling or passing through heat exchange tubes with circulating water liquid for heat exchange to cool down. For direct air blowing for heat dissipation, the cooling effect is limited. For directly installing heat exchange tubes in the fuel tank for heat exchange, it occupies the internal space of the fuel tank, greatly reducing the fuel storage capacity of the equipment's fuel tank and affecting its fuel storage effect.

[0003] Therefore, an external device is needed that can output the oil liquid in the fuel tank for heat exchange and then return it to the equipment's fuel tank. In existing such external heat exchange fuel tanks, generally, a vertically extending evaporator main component and a condenser are provided inside, increasing its height, affecting its placement, and occupying too much space in the height direction. Summary of the Utility Model:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a heat exchange oil cooler. It adopts a fuel tank main body with a C-shaped top view, an evaporator main component and a condenser with a C-shaped top view. It increases the heat exchange area in the horizontal direction, thereby reducing the height of the fuel tank main body, the evaporator main component and the condenser, reducing the space occupied in the height direction. Moreover, its evaporator main component is matched with the inside of the fuel tank main body, improving its heat exchange efficiency. At the same time, its main liquid outlet pipe is above the front end of the side extension box part on one side, and the oil return connection pipe head is at the front end plate of the side extension box part on the other side, increasing the distance between the two, improving the oil liquid flow distance, and thus improving the heat exchange effect and heat exchange efficiency.

[0005] The solution for the utility model to solve the above technical problems is:

[0006] A heat exchange oil cooler includes a chassis. The top surface of the bottom plate of the chassis is fixed with a fuel tank main body with a C-shaped top view. In the middle of the top surface of the bottom plate of the chassis, a compressor assembly and a middle support frame are fixed. The fuel tank main body includes two left and right front and rear extending side extension box parts and a transverse box part at the rear between the two side extension box parts. The left and right ends of the transverse box part are communicated with the rear parts of the two side extension box parts. An evaporator main component is installed in the fuel tank main body, and the evaporator main component also has a C-shaped top view and is matched with the fuel tank main body. The top surface of the top cover of the fuel tank main body is fixed with a condenser with a C-shaped top view.

[0007] A rotating motor is fixed on the top surface of the top plate of the middle support frame. A heat dissipation impeller is fixed on the top output shaft of the rotating motor. The heat dissipation impeller faces the total air outlet through hole in the middle of the top plate of the chassis. There are multiple air intake and heat dissipation through holes formed on the side plate of the chassis.

[0008] A main liquid outlet pipe is connected to the top cover of the fuel tank body. A fuel pump is fixed on the bottom surface of the top plate of the middle support frame. The liquid outlet of the main liquid outlet pipe is connected to the liquid inlet of the fuel pump. The liquid outlet of the fuel pump is connected through a connecting pipe to the inner end of a liquid outlet connecting pipe head fixed on the front wall plate of the chassis. The outer end of the liquid outlet connecting pipe head extends out of the front wall surface of the front wall plate of the chassis and is fixed with a total plug.

[0009] A return oil connecting pipe head is connected to the lower part of the front end plate of one side extension box body part of the fuel tank body. The front end of the return oil connecting pipe head extends out of the front wall plate of the chassis and is screwed with a first plug. The main liquid outlet pipe is above the front end of the side extension box body part on one side, and the return oil connecting pipe head is at the front end plate of the side extension box body part on the other side.

[0010] The top ends of the inlet pipe and the outlet pipe of the main evaporator component both extend out of the top surface of the corresponding through holes on the top cover of the fuel tank body. The outlet end of the compressor assembly is connected to the inlet pipe of the condenser through a connecting pipe. The outlet pipe of the condenser is connected to the inlet of the throttle valve through a connecting pipe. The outlet of the throttle valve is connected to the inlet pipe of the main evaporator component through a connecting pipe. The outlet pipe of the main evaporator component is connected to the inlet end of the compressor assembly through a connecting pipe.

[0011] An annular sleeve body is fixed on the bottom surface of the top plate of the chassis around the total air outlet through hole. The heat dissipation impeller is inserted into the annular sleeve body. A protective mesh piece is fixed on the top surface of the top plate of the chassis, and the protective mesh piece covers the total air outlet through hole.

[0012] The fuel tank body includes a main box body and a top cover. The top cover is fixedly connected to the top end of the main box body by bolts. Lower support frames are fixed on the bottom surfaces of the left and right sides of the top cover. The left and right parts of the main evaporator component are fixed on the two lower support frames.

[0013] An oil injection connecting head is fixed on the upper front wall surface of the front end plate of one side extension box body part. The oil injection connecting head extends out of the front wall surface of the front wall plate of the chassis. An inclined oil inlet hole is formed on it, and it communicates with the through hole in the upper part of the front end plate of the corresponding side extension box body part.

[0014] A drain oil connecting pipe head is connected to the front end plate of the side extension box body part below the oil injection connecting head. The front part of the drain oil connecting pipe head extends out of the front wall surface of the front wall plate of the chassis and is screwed with a drain oil plug.

[0015] A liquid level gauge is fixed on the front wall surface of the front end plate of the side extension box body part. The liquid level gauge communicates with the side extension box body part, and the front part of the liquid level gauge extends out of the front end face of the vertical through groove formed on the front wall plate of the chassis.

[0016] The prominent effect of the present utility model is:

[0017] Compared with the prior art, it adopts a fuel tank main body with a C-shaped top view, an evaporator main part with a C-shaped top view, and a condenser. It increases the heat exchange area in the horizontal direction, thereby reducing the height of the fuel tank main body, the evaporator main part, and the condenser, reducing the space occupation in the height direction. Moreover, the evaporator main part is internally matched with the fuel tank main body, improving the heat exchange efficiency. At the same time, the main liquid outlet pipe is located above the front end of the side extension box body part on one side, and the oil return connection pipe head is located at the front end plate of the side extension box body part on the other side. The distance between the two is increased, improving the oil flow distance, thereby improving the heat exchange effect and heat exchange efficiency. Description of the drawings:

[0018] Figure 1 is a partial structural schematic diagram of the present utility model;

[0019] Figure 2 is a partial structural schematic diagram of the present utility model with the top plate and front wall plate of the chassis removed;

[0020] Figure 3 is Figure 2 a partial structural schematic diagram of the present utility model with components such as the protective mesh removed from a different angle;

[0021] Figure 4 is Figure 3 a partial structural schematic diagram of the present utility model with components such as the rotating motor removed from a different angle;

[0022] Figure 5 is Figure 4 a partial structural schematic diagram of the present utility model from a different angle;

[0023] Figure 6 is a partial structural schematic diagram at the fuel tank main body;

[0024] Figure 7 is a partial structural schematic diagram of the fuel tank main body with components such as the main box body removed;

[0025] Figure 8 is a partial structural schematic diagram of the fuel tank main body with the top cover removed. Specific implementation manners:

[0026] Example, as shown in Figures 1 to 8As shown in the figure, a heat exchange oil cooler includes a chassis 10. A control host is installed in the upper part of the chassis 10. All electrical appliances in this embodiment are electrically connected to the control host through electrical connection wires and are controlled to operate by the control host. A liquid crystal display screen is fixed on the inner wall surface of the front wall plate of the chassis 10, facing the through slot formed on the front wall plate of the chassis 10. The liquid crystal display screen is electrically connected to the control host through an electrical connection wire and can display the current operating conditions. The above structures are the same as the well-known structures on the existing market and will not be described in detail; bottom supports are fixed to the left and right parts of the bottom surface of the bottom plate of the chassis 10.

[0027] The top surface of the bottom plate of the chassis 10 is fixed with a fuel tank main body 20 that is C-shaped when viewed from above. A compressor assembly 40 and a middle support frame 50 are fixed in the middle of the top surface of the bottom plate of the chassis 10. The fuel tank main body 20 includes two left and right side extension box parts 21 extending forward and backward and a transverse box part 22 at the rear between the two side extension box parts 21. The left and right ends of the transverse box part 22 communicate with the rear parts of the two side extension box parts 21 (the side extension box parts 21 and the transverse box part 22 can be directly formed into an integral structure by means of steel plate bending and welding. At this time, the transverse box part 22 is formed between the rear parts of the two side extension box parts 21 and communicates. The top cover 23 is fixedly connected to the tops of the side extension box parts 21 and the transverse box part 22 by bolts and covers the top of the inner cavity of the side extension box parts 21 and the transverse box part 22. At the same time, a sealing strip is clamped between the top cover 23 and the top surfaces of the side extension box parts 21 and the transverse box part 22 to achieve sealing). An evaporator main component 30 is installed in the fuel tank main body 20. The evaporator main component 30 is also C-shaped when viewed from above and cooperates with the fuel tank main body 20. The top surface of the top cover 23 of the fuel tank main body 20 is fixed with a condenser 60 that is C-shaped when viewed from above;

[0028] A rotating motor 51 is fixed on the top surface of the top plate of the middle support frame 50. A heat dissipation impeller 52 is fixed on the top output shaft of the rotating motor 51. The heat dissipation impeller 52 faces the total air outlet through hole 11 in the middle of the top plate of the chassis 10. A plurality of air intake and heat dissipation through holes 12 are formed on the side plate of the chassis 10;

[0029] A main liquid outlet pipe 24 is connected to the top cover 23 of the fuel tank main body 20. An oil pump 53 is fixed to the bottom surface of the top plate of the middle support frame 50. The liquid outlet of the main liquid outlet pipe 24 is connected to the liquid inlet of the oil pump 53. The liquid outlet of the oil pump 53 is connected to the inner end of a liquid outlet connection pipe head 5 fixed on the front wall plate of the chassis 10 through a connecting pipe (for the convenience of display, the connecting pipe connecting the liquid outlet of the oil pump 53 and the inner end of the liquid outlet connection pipe head 5 is shown by a dotted line in some drawings). The outer end of the liquid outlet connection pipe head 5 extends out of the front wall surface of the front wall plate of the chassis 10 and is fixed with a total plug 6;

[0030] At the lower part of the front end plate of one of the side extension box parts 21 of the fuel tank main body 20, an oil return connection pipe head 25 is connected. The front end of the oil return connection pipe head 25 extends out of the front wall plate of the chassis 10 and is screwed with a first plug 1. The main liquid outlet pipe 24 is above the front end of the side extension box part 21 on one side, and the oil return connection pipe head 25 is at the front end plate of the side extension box part 21 on the other side;

[0031] The top ends of the inlet pipe and the outlet pipe of the evaporator main part 30 both extend out of the top surface of the corresponding through holes of the top cover 23 of the fuel tank main body 20. The outlet end of the compressor assembly 40 is connected to the inlet pipe of the condenser 60 through a connecting pipe. The outlet pipe of the condenser 60 is connected to the inlet of the throttle valve 61 through a connecting pipe. The outlet of the throttle valve 61 is connected to the inlet pipe of the evaporator main part 30 through a connecting pipe (in some drawings, this connecting pipe is also represented by a dotted line). The outlet pipe of the evaporator main part 30 is connected to the inlet end of the compressor assembly 40 through a connecting pipe.

[0032] When this embodiment is in use, the total plug 6 is removed, the liquid outlet connection pipe head 5 is connected to the oil inlet of the fuel tank of the mechanical equipment through a connecting pipe, the first plug 1 is removed, and the oil outlet of the fuel tank of the mechanical equipment is connected to the front end of the oil return connection pipe head 25 through a connecting pipe.

[0033] When in use, through the operation of the oil pump 53, the oil in the fuel tank of the mechanical equipment enters the fuel tank main body 20. At the same time, the compressor assembly 40 operates, so that the refrigerant flows out of the compressor assembly 40 and then flows through the condenser 60 and the throttle valve 61, and then enters the evaporator main part 30 to realize evaporation and heat absorption (this refrigeration principle is the same as that of air conditioners and refrigerators and is well-known content, so it will not be elaborated). At this time, it exchanges heat with the oil in the fuel tank main body 20 to reduce the temperature of the oil in the fuel tank main body 20. The heat-exchanged oil enters the oil pump 53 through the main liquid outlet pipe 24 and then enters the fuel tank of the mechanical equipment through the liquid outlet connection pipe head 5, so that the temperature of the oil in its fuel tank is greatly reduced, ensuring the normal operation of the equipment.

[0034] Furthermore, a ring-shaped sleeve 13 is fixed to the bottom surface of the top plate of the chassis 10 around the total air outlet through hole 11 of the top plate of the chassis 10. The heat dissipation impeller 52 is inserted into the ring-shaped sleeve 13. A protective mesh 14 is fixed to the top surface of the top plate of the chassis 10, and the protective mesh 14 covers the total air outlet through hole 11. By operating the rotating motor 51, the heat dissipation impeller 52 rotates, and the external air enters the chassis 10 through the intake heat dissipation through hole 12 and exchanges heat with the condenser 60, transferring the high-temperature heat of the condenser 60 to the air, increasing the air temperature. As the heat dissipation impeller 52 rotates, the high-temperature air is discharged from the total air outlet through hole 11 to realize heat dissipation.

[0035] Furthermore, the protection mesh sheet 14 is a plurality of concentric annular rings with different diameters, which are welded and fixed on the top surface of the cross-shaped frame body. The four ends of the cross-shaped frame body are fixedly connected to the top surface of the top plate of the chassis 10 through bolts.

[0036] Furthermore, the fuel tank main body 20 includes a main box body 26 and a top cover 23. The top cover 23 is fixedly connected to the top end of the main box body 26 through bolts. Lower support frames 231 are fixedly arranged on the bottom surfaces of the left and right sides of the top cover 23. The left and right parts of the main evaporator component 30 are fixed on the two lower support frames 231. This structure ensures that the bottom of the main evaporator component 30 does not contact the top surface of the bottom plate of the main box body 26, thus guaranteeing the normal flow of the oil liquid.

[0037] Both the main evaporator component 30 and the condenser 60 include heat exchange tubes 31 coiled in an S shape and a plurality of heat dissipation fins 32 fixed on the outer side walls of the heat exchange tubes 31. The left and right parts of the heat exchange tubes 31 are bent to form a left bent part and a right bent part.

[0038] The left bent part and the right bent part of the main evaporator component 30 are inserted into the corresponding side extension box body parts 21, and the middle part of the heat exchange tubes 31 of the main evaporator component 30 is located in the transverse box body part 22 of the fuel tank main body 20.

[0039] The bottom surfaces of the left bent part and the right bent part of the condenser 60 are fixed on the top surfaces of the front and rear extending connecting plate parts of the left and right parts of the top cover 23, and the middle part of the heat exchange tubes 31 of the condenser 60 is located on the top surface of the middle plate body at the rear of the top cover 23.

[0040] The fuel tank main body 20, the main evaporator component 30, and the condenser 60, which are in a shape of a square bracket when viewed from above, increase the heat exchange area in the horizontal direction, thereby reducing the heights of the fuel tank main body 20, the main evaporator component 30, and the condenser 60 and the space occupation in the height direction. Moreover, the cooperation between the main evaporator component 30 and the interior of the fuel tank main body 20 improves the heat exchange efficiency. At the same time, the main liquid outlet pipe 24 is located above the front end of one side extension box body part 21, and the oil return connection pipe head 25 is located at the front end plate of the other side extension box body part 21. The distance between the two is increased, improving the oil flow distance, and thus enhancing the heat exchange effect and heat exchange efficiency.

[0041] Furthermore, an oil injection connection head 27 is fixed on the upper front wall surface of the front end plate of one side extension box body part 21. The oil injection connection head 27 extends out of the front wall surface of the front wall plate of the chassis and is formed with an inclined oil inlet hole, which is communicated with the through hole at the upper part of the front end plate of the corresponding side extension box body part 21. After removing the plug on the oil injection connection head 27, the fuel tank main body 20 can be refueled.

[0042] A drain oil connection pipe head 211 is connected to the front end plate of the side extension box body part 21 below the oil injection connection head 27. The front part of the drain oil connection pipe head 211 extends out of the front wall surface of the front wall plate of the chassis 10 and is screwed with a drain oil plug 2. When it is necessary to drain the oil in the fuel tank main body 20, the drain oil plug 2 can be disassembled for oil draining.

[0043] A liquid level gauge 3 is fixed on the front wall surface of the front end plate of the side extension box body part 21. The liquid level gauge 3 communicates with the side extension box body part 21. The front part of the liquid level gauge 3 extends out of the front end surface of the vertical through groove formed on the front wall plate of the chassis 10. The oil quantity in the fuel tank main body 20 can be checked through the liquid level gauge 3. When its value is lower than the minimum value, it is necessary to disassemble the plug on the oil injection connection head 27 and then refuel the fuel tank main body 20.

[0044] Finally, the above embodiments are only used to illustrate the present invention, rather than limiting the present invention. Those of ordinary skill in the relevant technical field can also make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention shall be defined by the claims.

Claims

1. A heat exchange oil cooler, comprising a chassis (10), characterized in that: On the top surface of the bottom plate of the chassis (10), a fuel tank main body (20) which is in a U-shape when viewed from above is fixed. In the middle of the top surface of the bottom plate of the chassis (10), a compressor assembly (40) and a middle support frame (50) are fixed. The fuel tank main body (20) includes two side extension box body parts (21) extending forward and backward on the left and right and a transverse box body part (22) at the rear part between the two side extension box body parts (21). The left and right ends of the transverse box body part (22) communicate with the rear parts of the two side extension box body parts (21). An evaporator main part (30) is installed in the fuel tank main body (20). The evaporator main part (30) is also in a U-shape when viewed from above and cooperates with the fuel tank main body (20). On the top surface of the top cover (23) of the fuel tank main body (20), a condenser (60) which is in a U-shape when viewed from above is fixed; On the top surface of the top plate of the middle support frame (50), a rotating motor (51) is fixed. On the top output shaft of the rotating motor (51), a heat dissipation impeller (52) is fixed. The heat dissipation impeller (52) faces the total air outlet through hole (11) in the middle of the top plate of the chassis (10). On the side plate of the chassis (10), a plurality of air intake and heat dissipation through holes (12) are formed; A main liquid outlet pipe (24) is connected to the top cover (23) of the fuel tank main body (20). On the bottom surface of the top plate of the middle support frame (50), an oil pump (53) is fixed. The liquid outlet of the main liquid outlet pipe (24) is connected to the liquid inlet of the oil pump (53). The liquid outlet of the oil pump (53) is connected to the inner end of a liquid outlet connection pipe head (5) fixed on the front wall plate of the chassis (10) through a connecting pipe. The outer end of the liquid outlet connection pipe head (5) extends out of the front wall surface of the front wall plate of the chassis (10) and a total plug (6) is fixed; At the lower part of the front end plate of one of the side extension box body parts (21) of the fuel tank main body (20), a return oil connection pipe head (25) is connected. The front end of the return oil connection pipe head (25) extends out of the front wall plate of the chassis (10) and is screwed with a first plug (1). The main liquid outlet pipe (24) is above the front end of the side extension box body part (21) on one side. The return oil connection pipe head (25) is at the front end plate of the side extension box body part (21) on the other side; The top ends of the inlet pipe and the outlet pipe of the evaporator main part (30) both extend out of the top surface of the corresponding through holes of the top cover (23) of the fuel tank main body (20). The outlet end of the compressor assembly (40) is connected to the inlet pipe of the condenser (60) through a connecting pipe. The outlet pipe of the condenser (60) is connected to the inlet of the throttle valve (61) through a connecting pipe. The outlet of the throttle valve (61) is connected to the inlet pipe of the evaporator main part (30) through a connecting pipe. The outlet pipe of the evaporator main part (30) is connected to the inlet end of the compressor assembly (40) through a connecting pipe.

2. The heat exchange oil cooler according to claim 1, characterized in that: Around the total air outlet through hole (11) of the top plate of the chassis (10), an annular sleeve body (13) is fixed on the bottom surface of the top plate of the chassis (10). The heat dissipation impeller (52) is inserted into the annular sleeve body (13). On the top surface of the top plate of the chassis (10), a protective mesh piece (14) is fixed. The protective mesh piece (14) covers the total air outlet through hole (11).

3. The heat exchange oil cooler according to claim 2, wherein: The protective mesh sheet (14) is a plurality of concentric annular rings with different diameters, which are welded and fixed on the top surface of the cross-shaped frame body. The four ends of the cross-shaped frame body are fixedly connected to the top surface of the top plate of the chassis (10) by bolts.

4. A heat exchange oil cooler according to claim 1, characterized in that: The fuel tank main body (20) includes a main box body (26) and a top cover (23). The top cover (23) is fixedly connected to the top end of the main box body (26) by bolts. Lower support frames (231) are fixedly arranged on the bottom surfaces of the left and right sides of the top cover (23). The left and right parts of the main evaporator component (30) are fixed on the two lower support frames (231).

5. A heat exchange oil cooler according to claim 1, characterized in that: Both the main evaporator component (30) and the condenser (60) include heat exchange tubes (31) coiled in an S shape and a plurality of heat dissipation fins (32) fixed on the outer side walls of the heat exchange tubes (31). The left and right parts of the heat exchange tubes (31) are bent to form a left bent part and a right bent part. The left bent part and the right bent part of the main evaporator component (30) are inserted into the corresponding side extension box body parts (21). The middle part of the heat exchange tubes (31) of the main evaporator component (30) is located in the transverse box body part (22) of the fuel tank main body (20). The bottom surfaces of the left bent part and the right bent part of the condenser (60) are fixed on the top surfaces of the front and rear extending connecting plate parts of the left and right parts of the top cover (23). The middle part of the heat exchange tubes (31) of the condenser (60) is located on the top surface of the middle plate body at the rear part of the top cover (23).

6. The heat exchange oil cooler according to claim 1, wherein: An oil injection connection head (27) is fixed on the upper front wall surface of the front end plate of one side extension box body part (21). The oil injection connection head (27) extends out of the front wall surface of the front wall plate of the chassis (). An inclined oil inlet hole is formed thereon, and it communicates with the through hole at the upper part of the front end plate of the corresponding side extension box body part (21).

7. The heat exchange oil cooler according to claim 6, wherein: An oil drain connection pipe head (211) is connected to the front end plate of the side extension box body part (21) at the lower part of the oil injection connection head (27). The front part of the oil drain connection pipe head (211) extends out of the front wall surface of the front wall plate of the chassis (10) and is screwed with an oil drain plug (2).

8. The heat exchange oil cooler according to claim 1, characterized in that: A liquid level gauge (3) is fixed on the front wall surface of the front end plate of one side extension box body part (21). The liquid level gauge (3) communicates with the side extension box body part (21). The front part of the liquid level gauge (3) extends out of the front end surface of the vertical through groove formed on the front wall plate of the chassis (10).

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