CN211370548U

CN211370548U - Cooling water circulation system of mute box unit

Info

Publication number: CN211370548U
Application number: CN201922476155.3U
Authority: CN
Inventors: 冉毅; 罗雄彬; 李瑜; 刘芝建; 王先健
Original assignee: Chongqing Dinking Power Machinery Co ltd
Current assignee: Chongqing Dinking Power Machinery Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-28
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a silence case unit cooling water circulation system, including silence case and engine, motor, silencer and the water pump of setting in the silence case, the silence case includes silence case casing and silence case base, the silence case still is provided with the radiator outward, be provided with silence case inlet tube and silence case outlet pipe on the silence case base, be provided with engine water cooling system in the engine, be provided with motor water cooling system in the motor, be provided with silencer water cooling system in the silencer, silence case inlet tube, motor water cooling system, water pump, engine water cooling system, silencer water cooling system, silence case outlet pipe and radiator end to end form silence case unit cooling water circulation system. The circulation sequence of the cooling water circulation system is from low-temperature parts to high-temperature parts, and each part can be effectively cooled; and meanwhile, the water pump is arranged, so that the flow speed of cooling water is accelerated, and the heat exchange efficiency is improved.

Description

Cooling water circulation system of mute box unit

Technical Field

The utility model belongs to the technical field of the silence generator, concretely relates to silence case unit cooling water circulation system.

Background

The generator is mechanical equipment for converting energy in other forms into electric energy, is driven by a water turbine, a steam turbine, a diesel engine or other power machines, converts energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy to be transmitted to the generator, and then converts the mechanical energy into electric energy to be output to electric equipment for use.

The silent box generator set is relatively closed relative to other generator sets, heat generated by the engine relative to other generator sets is not easy to dissipate in the power generation process, and if measures are not taken timely, the working performance and the service life of the engine are greatly influenced. The cooling mode of the generator set is wind cooling and water cooling, and the water cooling effect is superior to the wind cooling, so the water cooling mode is preferentially adopted in the generator set at present.

In the prior art, the generator set adopts a cooling water circulation system and has the following two defects: firstly, the circulation sequence of the cooling water is not good, the muffler is cooled firstly and then the engine is cooled, and the cooling effect of the cooling water on the engine after the muffler is cooled is reduced because the temperature of the muffler is higher than that of the engine; and secondly, a power device for increasing the flow of cooling water is not used, the flow rate of the cooling water is low, and the heat exchange efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the cooling water circulation system of silence case unit is proposed to the simulation, lets the circulation order of cooling water by the spare part that calorific capacity is low to the spare part that calorific capacity is high, can effectually cool off whole silence case unit.

Therefore, the utility model discloses the technical scheme who adopts does: the utility model provides a silence case unit cooling water circulation system, includes silence case and engine, motor, silencer and the water pump of setting in the silence case, the silence case includes silence case casing and silence case base, the silence case still is provided with the radiator outward, be provided with silence case inlet tube and silence case outlet pipe on the silence case base, be provided with engine water cooling system in the engine, be provided with motor water cooling system in the motor, be provided with silencer water cooling system in the silencer, silence case inlet tube, motor water cooling system, water pump, engine water cooling system, silencer water cooling system, silence case outlet pipe and radiator end to end form silence case unit cooling water circulation system.

Preferably, the silent box base is further provided with a silent box drain pipe, the silent box drain pipe is communicated with the lowest point of the silencer water cooling system, when cooling water needs to be replaced, the silent box drain pipe is opened, and the cooling water in the cooling water circulating system of the silent box unit is drained through the silent box drain pipe, so that the cooling water is convenient to replace.

Further preferably, the muffler is a full water-cooling muffler, the full water-cooling muffler is divided into a muffler inner shell and a muffler outer shell, the full water-cooling muffler is divided into the muffler inner shell and the muffler outer shell, a coolant channel is formed between the muffler inner shell and the muffler outer shell, a vertical partition is arranged in an inner cavity of the muffler, the inner cavity of the muffler is divided into a muffler front cavity and a muffler rear cavity, a horizontal partition is arranged at the middle upper part of the muffler front cavity, the muffler front cavity is divided into a first muffling cavity and a second muffling cavity, an air inlet pipe is arranged on the left side wall of the first muffling cavity, an exhaust pipe is arranged at the position, close to the bottom, of the right side wall of the muffler rear cavity, a first muffling resistance pipe is arranged at the right end of the second muffling cavity, a second muffling resistance pipe is arranged at the left end of the second muffling cavity, and a third muffling, the right end of the rear cavity of the silencer is provided with a fourth silencing and blocking pipe, the upper end of the first silencing and blocking pipe extends into the first silencing and blocking cavity, the upper and lower ends of the other silencing and blocking pipes are connected with and sealed with the inner cavity of the corresponding silencing cavity, a first partition plate is arranged in the second silencing and blocking cavity, a second partition plate is arranged in the rear cavity of the silencer to enable gas to flow in an S-shaped path in the corresponding cavity, the second silencing and blocking pipe is communicated with the third silencing and blocking pipe through a horizontal connecting pipe, and silencing cotton is arranged on the inner wall of the rear cavity of the silencer. The full water-cooling silencer can carry out maximum noise reduction and heat insulation, and has compact and reasonable structure and small occupied space.

Preferably, the silencer is further provided with a precooling device, the precooling device is provided with a precooling water inlet pipe and a precooling water outlet pipe, the engine is internally provided with a power water outlet pipe, the silencer is internally provided with a silencer water inlet pipe and a silencer water outlet pipe, the power water outlet pipe is respectively communicated with the silencer water inlet pipe and the precooling water inlet pipe through a three-way pipe, and the precooling water outlet pipe is communicated with the silencer water outlet pipe. The precooling device is additionally arranged, so that the silencer can be cooled, and the cooling effect of the whole system is improved.

Further preferably, the precooling device adopts a precooling box, the precooling box comprises a precooling box shell and a precooling box inner box, a precooling box cooling water cavity is formed between the precooling box shell and the precooling box inner box, a precooling water inlet pipe and a precooling water outlet pipe are arranged on the precooling box shell, the precooling water inlet pipe and the precooling water outlet pipe are respectively arranged at two ends of the precooling box shell and are communicated with the precooling box cooling water cavity, the precooling water inlet pipe is communicated with a power water outlet pipe, the precooling water outlet pipe is communicated with a silencer water outlet pipe, a precooling exhaust pipe and a precooling air inlet pipe are further arranged on the precooling box shell, the precooling exhaust pipe is communicated with the precooling box inner box, the precooling air inlet pipe extends into the precooling box. The precooling box has simple structure and good precooling effect, and has the function of silencing waste gas generated by the engine during precooling.

Further preferably, the motor adopts water-cooled inner rotor motor, water-cooled inner rotor motor includes the combination of the motor inner rotor and the motor stator of coaxial setting, motor stator combination includes coil winding and the stator overcoat by interior to outer suit in proper order, it has annular cooling water cavity to open in the stator overcoat to it is sealed with annular cooling water cavity through cooling water cavity apron, motor inlet tube and motor outlet pipe are equipped with on the lateral wall of stator overcoat, motor inlet tube, motor outlet pipe communicate with each other with annular cooling water cavity respectively, and the motor inlet tube links to each other with silence case inlet tube, and the motor outlet pipe links to each other with the water pump. The water-cooled inner rotor motor has the characteristics of simple structure, high heat dissipation efficiency, low cost and the like.

Further preferably, the highest point of the annular cooling water cavity is further provided with a motor vent pipe, a power water inlet pipe is arranged in the engine, a water pump water outlet pipe is further arranged on the water pump, and the motor vent pipe and the water pump water outlet pipe are communicated with the power water inlet pipe through a three-way pipe, so that circulation of cooling liquid above the annular cooling water cavity is facilitated.

The utility model has the advantages that: the circulation sequence of the cooling water circulation system is from the parts with low calorific value to the parts with high calorific value, and each part can be effectively cooled; and meanwhile, the water pump is arranged, so that the flow speed of cooling water is accelerated, and the heat exchange efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention.

Fig. 3 is a perspective view of an embodiment of the present invention (with the radiator and the mute case housing omitted).

Fig. 4 is a schematic structural diagram of the middle precooling apparatus of the present invention.

Fig. 5 is a cross-sectional view a-a of fig. 4.

Fig. 6 is a schematic structural view of the muffler of the present invention.

Fig. 7 is a cross-sectional view of B-B in fig. 6.

Fig. 8 is a schematic structural diagram of the middle motor of the present invention.

Detailed Description

The invention will be further described by way of examples with reference to the accompanying drawings:

as shown in fig. 1-8, a cooling water circulation system of a mute box unit mainly comprises a mute box, an engine 3, a motor 4, a muffler 5 and a water pump 6, wherein the engine 3, the motor 4, the muffler 5 and the water pump 6 are arranged in the mute box, the mute box comprises a mute box shell 1 and a mute box base 2, a radiator 7 is arranged outside the mute box, a mute box water inlet pipe 2a and a mute box water outlet pipe 2b are arranged on the mute box base 2, an engine water cooling system a is arranged in the engine 3, a motor water cooling system b is arranged in the motor 4, a muffler water cooling system c is arranged in the muffler 5, the water inlet pipe 2a of the silent box, the water cooling system b of the motor, the water pump 6, the water cooling system a of the engine, the water cooling system c of the muffler, the water outlet pipe 2b of the silent box and the radiator 7 are connected end to form a cooling water circulation system of the silent box set.

Preferably, the mute box base 2 is further provided with a mute box drain pipe 2c, the mute box drain pipe 2c is communicated with the lowest point of the silencer water cooling system c, when cooling water needs to be replaced, the mute box drain pipe 2c is opened, and the cooling water in the cooling water circulating system of the mute box unit is discharged through the mute box drain pipe 2c, so that the cooling water is convenient to replace.

Preferably, the muffler 5 is a full water-cooled muffler, which is divided into an inner muffler shell and an outer muffler shell, a coolant passage 5c is formed between the inner muffler shell and the outer muffler shell, a vertical partition is provided in an inner muffler cavity, the inner muffler cavity is divided into a front muffler cavity and a rear muffler cavity, a horizontal partition is provided at the middle upper part of the front muffler cavity, the front muffler cavity is divided into a first muffling cavity and a second muffling cavity, an air inlet pipe 5d is provided on the left side wall of the first muffling cavity, an air outlet pipe 5e is provided at the position close to the bottom of the right side wall of the rear muffler cavity, a first muffling and blocking pipe 5f is provided at the right end of the second muffling cavity, a second muffling and blocking pipe 5g is provided at the left end of the second muffling cavity, a third muffling and blocking pipe 5h is provided at the left end of the rear muffler cavity, a fourth muffling and blocking pipe 5i is provided at the right end of the rear muffler, the upper end of the first silencing and blocking pipe 5f extends into the first silencing cavity, the upper and lower ends of the other silencing and blocking pipes are connected and sealed with the inner cavity of the corresponding silencing cavity, a first partition plate 5j is arranged in the second silencing cavity, a second partition plate 5k is arranged in the rear cavity of the silencer, so that gas flows in the corresponding cavity in an S-shaped route, the second silencing and blocking pipe 5g is communicated with the third silencing and blocking pipe 5h through a horizontal connecting pipe 5m, and silencing cotton is arranged on the inner wall of the rear cavity of the silencer. The full water-cooling silencer can carry out maximum noise reduction and heat insulation, and has compact and reasonable structure and small occupied space.

Preferably, a precooling device 8 is further arranged in the sound box, a precooling water inlet pipe 8a and a precooling water outlet pipe 8b are arranged on the precooling device, a power water outlet pipe 3b is arranged in the engine 3, a silencer water inlet pipe 5a and a silencer water outlet pipe 5b are arranged in the silencer 5, the power water outlet pipe 3b is respectively communicated with the silencer water inlet pipe 5a and the precooling water inlet pipe 8a through a three-way pipe, and the precooling water outlet pipe 8b is communicated with the silencer water outlet pipe 5 b. The precooling device is additionally arranged, so that the silencer can be cooled, and the cooling effect of the whole system is improved.

Preferably, the precooling device 8 adopts a precooling box, the precooling box comprises a precooling box outer shell 8c and a precooling box inner box 8d, a precooling box cooling water cavity is formed between the precooling box outer shell 8c and the precooling box inner box 8d, a precooling water inlet pipe 8a and a precooling water outlet pipe 8b are arranged on the precooling box outer shell 8c, the precooling water inlet pipe 8a and the precooling water outlet pipe 8b are respectively positioned at two ends of the precooling box outer shell 8c, and are communicated with a pre-cooling box cooling water cavity, a pre-cooling water inlet pipe 8a is communicated with a power water outlet pipe 3b, a pre-cooling water outlet pipe 8b is communicated with a silencer water outlet pipe 5b, a pre-cooling exhaust pipe 8e and a pre-cooling air inlet pipe 8f are also arranged on a pre-cooling box outer shell 8c, the pre-cooling exhaust pipe 8e is communicated with a pre-cooling box inner box 8d, the pre-cooling air inlet pipe 8f extends into the pre-cooling box inner box 8d, the end of the extending section of the pre-cooling air inlet, and a plurality of muffling holes are formed in the extension section, and the precooling air inlet pipe 8f is communicated with an engine exhaust pipe. The precooling box has simple structure and good precooling effect, and has the function of silencing waste gas generated by the engine during precooling.

Preferably, the motor 4 adopts a water-cooled inner rotor motor, the water-cooled inner rotor motor comprises a motor inner rotor 4d and a motor stator combination 4e which are coaxially arranged, the motor stator combination 4e comprises a coil winding and a stator jacket which are sequentially sleeved from inside to outside, an annular cooling water cavity is formed in the stator jacket and is sealed by a cooling water cavity cover plate, a motor water inlet pipe 4a and a motor water outlet pipe 4b are arranged on the outer side wall of the stator jacket, the motor water inlet pipe 4a and the motor water outlet pipe 4b are respectively communicated with the annular cooling water cavity, the motor water inlet pipe 4a is connected with a water inlet pipe 2a of the mute box, and the motor water outlet pipe 4b is connected with a water pump 6. The water-cooled inner rotor motor has the characteristics of simple structure, high heat dissipation efficiency, low cost and the like.

Preferably, the highest point of the annular cooling water cavity is also provided with a motor vent pipe 4c, a power water inlet pipe 3a is arranged in the engine, a water pump water outlet pipe 6a is further arranged on the water pump, and the motor vent pipe 4c and the water pump water outlet pipe 6a are communicated with the power water inlet pipe 3a through a three-way pipe, so that the circulation of cooling liquid above the annular cooling water cavity is facilitated.

Claims

1. The utility model provides a silence case unit cooling water circulation system, includes silence case and engine (3), motor (4), silencer (5) and water pump (6) of setting in the silence case, the silence case includes silence case casing (1) and silence case base (2), its characterized in that: still be provided with radiator (7) outward to the silence case, be provided with silence case inlet tube (2a) and silence case outlet pipe (2b) on silence case base (2), be provided with engine water cooling system (a) in engine (3), be provided with motor water cooling system (b) in motor (4), be provided with silencer water cooling system (c) in silencer (5), silence case inlet tube (2a), motor water cooling system (b), water pump (6), engine water cooling system (a), silencer water cooling system (c), silence case outlet pipe (2b) and radiator (7) end to end form silence case unit cooling water circulation system.

2. The cooling water circulation system of a silent box unit as claimed in claim 1, wherein: still be provided with silence case drain pipe (2c) on silence case base (2), silence case drain pipe (2c) and the minimum intercommunication of silencer water cooling system (c), when needs change the cooling water, open silence case drain pipe (2c), the cooling water in the silence case unit cooling water circulating system passes through silence case drain pipe (2c) and discharges.

3. The cooling water circulation system of a silent box unit as claimed in claim 1, wherein: the silencer (5) adopts a full water-cooling silencer which is divided into a silencer inner shell and a silencer outer shell, a cooling liquid channel (5c) is formed between the silencer inner shell and the silencer outer shell, a vertical partition plate is arranged in an inner cavity of the silencer, the inner cavity of the silencer is divided into a silencer front cavity and a silencer rear cavity, a horizontal partition plate is arranged at the middle upper part of the silencer front cavity, the silencer front cavity is divided into a first silencing cavity and a second silencing cavity, an air inlet pipe (5d) is arranged on the left side wall of the first silencing cavity, an exhaust pipe (5e) is arranged at the position, close to the bottom, of the right side wall of the silencer rear cavity, a first silencing blocking pipe (5f) is arranged at the right end of the second silencing cavity, a second silencing blocking pipe (5g) is arranged at the left end of the second silencing cavity, and a third silencing blocking pipe (5h) is arranged at the left end of the silencer rear, the right end of the rear cavity of the silencer is provided with a fourth silencing and blocking pipe (5i), the upper end of the first silencing and blocking pipe (5f) extends into the first silencing and blocking cavity, the upper end and the lower end of the rest of silencing and blocking pipes are connected and sealed with the inner cavity of the corresponding silencing cavity, a first partition plate (5j) is arranged in the second silencing and blocking cavity, a second partition plate (5k) is arranged in the rear cavity of the silencer to enable gas to flow in an S-shaped path in the corresponding cavity, the second silencing and blocking pipe (5g) is communicated with the third silencing and blocking pipe (5h) through a horizontal connecting pipe (5m), and silencing cotton is arranged on the inner wall of the rear cavity of the silencer.

4. The cooling water circulation system of a silent box unit as claimed in claim 1, wherein: still be provided with precooling apparatus (8) in the silence case, last precooling inlet tube (8a) and the precooling outlet pipe (8b) of being provided with of precooling apparatus, be provided with power outlet pipe (3b) in engine (3), be provided with silencer inlet tube (5a) and silencer outlet pipe (5b) in silencer (5), power outlet pipe (3b) communicate with silencer inlet tube (5a), precooling inlet tube (8a) respectively through the three-way pipe, precooling outlet pipe (8b) and silencer outlet pipe (5b) intercommunication.

5. The cooling water circulation system of a mute box unit as claimed in claim 4, wherein: the pre-cooling device (8) adopts a pre-cooling box, the pre-cooling box comprises a pre-cooling box shell (8c) and a pre-cooling box inner box (8d), a pre-cooling box cooling water cavity is formed between the pre-cooling box shell and the pre-cooling box inner box (8d), a pre-cooling water inlet pipe (8a) and a pre-cooling water outlet pipe (8b) are arranged on the pre-cooling box shell (8c), the pre-cooling water inlet pipe (8a) and the pre-cooling water outlet pipe (8b) are respectively positioned at two ends of the pre-cooling box shell (8c) and are communicated with the pre-cooling box cooling water cavity, the pre-cooling water inlet pipe (8a) is communicated with a power water outlet pipe (3b), the pre-cooling water outlet pipe (8b) is communicated with a silencer water outlet pipe (5b), a pre-cooling exhaust pipe (8e) and a pre-cooling air inlet pipe (8f) are further arranged on the pre-cooling box shell (8c), the pre, the end of the extending section of the precooling air inlet pipe (8f) is closed, a plurality of silencing holes are formed in the extending section, and the precooling air inlet pipe (8f) is communicated with an engine exhaust pipe.

6. The cooling water circulation system of a silent box unit as claimed in claim 1, wherein: motor (4) adopt water-cooled inner rotor motor, water-cooled inner rotor motor includes motor inner rotor (4d) and the motor stator combination (4e) of coaxial setting, motor stator combination (4e) include coil winding and the stator overcoat by interior outside to suit in proper order, it has annular cooling water cavity to open in the stator overcoat to it is sealed with annular cooling water cavity through cooling water cavity apron, be equipped with motor inlet tube (4a) and motor outlet pipe (4b) on the lateral wall of stator overcoat, motor inlet tube (4a), motor outlet pipe (4b) communicate with each other with annular cooling water cavity respectively, and motor inlet tube (4a) link to each other with silence case inlet tube (2a), and motor outlet pipe (4b) link to each other with water pump (6).

7. The cooling water circulation system of a silent box unit as claimed in claim 6, wherein: the engine is characterized in that a motor vent pipe (4c) is further arranged at the highest point of the annular cooling water cavity, a power water inlet pipe (3a) is arranged in the engine, a water pump water outlet pipe (6a) is further arranged on the water pump, and the motor vent pipe (4c) and the water pump water outlet pipe (6a) are communicated with the power water inlet pipe (3a) through a three-way pipe.