CN216950542U - Cooling air duct for silent generator set - Google Patents
Cooling air duct for silent generator set Download PDFInfo
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- CN216950542U CN216950542U CN202220667803.2U CN202220667803U CN216950542U CN 216950542 U CN216950542 U CN 216950542U CN 202220667803 U CN202220667803 U CN 202220667803U CN 216950542 U CN216950542 U CN 216950542U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a cooling air duct for a silent generator set, which comprises a generator shell and an engine arranged in the generator shell, wherein the generator shell is formed by combining a plurality of shells including a control panel with a main air inlet and a rear cover plate with a generator air outlet, and the engine comprises a box body, a silencer, a starting cover, a box cover with a box cover air inlet, a motor cover, a motor, a cylinder head assembly, a cylinder head outer cover, a fan, a silencer outer cover with a silencer air outlet and a silencer air inlet, a box body outer cover with a box body air inlet and an air guide duct, so that a first air duct for cooling a cylinder head and a second air duct for cooling the box body are formed. On the premise of ensuring the good noise reduction effect of the unit, the ventilation and heat dissipation performance of the unit is greatly improved, so that the performance of the unit is ensured, and the service life is prolonged.
Description
Technical Field
The utility model belongs to the technical field of general generators, and particularly relates to a cooling air duct for a silent generator set.
Background
The generator set is divided into an open-frame generator set and a mute generator set, wherein the whole set of the open-frame engine is exposed outside, and the mute generator set is additionally provided with an appearance covering piece on the basis of the open-frame engine, and the whole set is sealed except necessary air inlet and outlet, so that the generator set has the functions of sound insulation and rain prevention. The common mute generator set mainly comprises a closed case, a power box body, a motor, a silencer and the like. An engine in the power box body is connected with a motor, and a silencer is connected with a cylinder head in the power box body through an air inlet pipeline.
In order to ensure that the mute generator set can meet the corresponding decibel requirement, the whole engine core is almost sealed in the case, so that the ventilation and heat dissipation of the generator set are poor, the temperature inside the generator set is increased too fast, the performance of the generator set is further seriously influenced, and particularly the service life of the generator set is prolonged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cooling air duct for a silent generator set, which greatly improves the ventilation and heat dissipation performance of the generator set on the premise of ensuring the good noise reduction effect of the generator set, thereby ensuring the performance of the generator set and prolonging the service life.
Therefore, the technical scheme adopted by the utility model is as follows: a cooling air duct for a silent generator set comprises a generator shell and an engine arranged in the generator shell, wherein the generator shell is formed by combining a plurality of shells including a control panel and a rear cover plate, the control panel and the rear cover plate are respectively arranged on the front side and the rear side of the engine, a main air inlet for air inlet is arranged on the control panel, a generator air outlet for cooling air exhaust is arranged on the rear cover plate, the engine comprises a box body and a silencer, a starting cover is arranged on the front side of the box body, a box cover is arranged on the rear side of the box body, a motor cover is arranged on the rear side of the box cover, a motor is arranged in the motor cover, a cylinder head assembly is arranged at the cylinder head end of the box body, a cylinder head outer cover is arranged on the cylinder head assembly outer cover, and a connecting pipe of the silencer is arranged on the cylinder head assembly after penetrating through the cylinder head outer cover, the silencer is characterized in that a silencer outer cover is arranged on the silencer outer cover, a silencer air outlet is arranged at a position, corresponding to the generator air outlet, on the silencer outer cover, a box body outer cover capable of covering a box body cylinder end and the upper end of the box body is arranged on the upper surface and the side surface of the box body, a box body air inlet is arranged on the box body outer cover, a box cover air inlet is arranged at the upper end, close to one side of the box body, of the box cover, a fan is arranged between the box cover and the motor, a first air guide channel is arranged at one side, close to the motor cover, of the box cover, a second air guide channel matched with the first air guide channel is arranged at one side, close to the box cover, of the motor cover, the first air guide channel and the second air guide channel are enclosed to form an air guide channel, and the silencer air inlet is arranged at the upper end, corresponding to the air guide channel, of the silencer outer cover;
the air conditioner comprises a first air duct: cooling air enters the generator shell from the main air inlet, enters the cylinder head outer cover to cool the cylinder head assembly under the action of the starting cover, enters the silencer outer cover along the connecting pipe to cool the silencer, and is discharged along the silencer air outlet and the generator air outlet;
including the second wind channel: cooling air enters the generator shell from the main air inlet, enters the box body outer cover along the box body air inlet to cool the box body under the action of the fan, enters the motor cover along the box cover air inlet, enters the silencer outer cover along the air guide duct and the silencer air inlet to cool the silencer, and is discharged along the silencer air outlet and the generator air outlet.
Preferably, the box housing cover includes a first wind shield, a second wind shield and a third wind shield, the first wind shield is disposed on one side of the starting cover close to the box body and extends toward the box body, the second wind shield is disposed on the top surface of the box body, the third wind shield is disposed on the side surface of the box body, and the box body air inlet is disposed on the second wind shield.
Preferably, a frequency converter wind scooper capable of covering a frequency converter in the generator set is arranged between the control panel and the starting cover, and an inner wind port is arranged on the frequency converter wind scooper.
Preferably, the silencer outer cover comprises an upper silencer cover and a lower silencer cover which are arranged up and down, the silencer air inlet is formed in the lower silencer cover, a wind shield used for preventing the first air channel and the second air channel from crossing is arranged above the silencer air inlet in the lower silencer cover, the wind shield is located in the upper silencer cover, and the silencer air outlet is formed by two semi-elliptical grooves formed in the rear sides of the upper silencer cover and the lower silencer cover in a surrounding mode.
Preferably, an induced draft cover is arranged between the air outlet of the silencer and the air outlet of the generator.
Preferably, the fan is a bidirectional fan, a case cover baffle is arranged behind the case cover air inlet, a motor air inlet is arranged on the rear side of the motor cover, and an auxiliary air inlet is arranged on the rear cover plate;
the cooling air enters the generator shell from the auxiliary air inlet under the action of the bidirectional fan, continues to enter the motor cover along the motor air inlet to cool the motor under the action of the bidirectional fan, then enters the silencer outer cover along the air guide channel and the silencer air inlet to cool the silencer, and is discharged along the silencer air outlet and the generator air outlet.
Preferably, the auxiliary air inlet is formed in the other side of the motor air inlet, and a circle of baffle extending forwards is arranged at the position, corresponding to the auxiliary air inlet and the motor air inlet, of the front side of the rear cover plate.
Preferably, the middle lower part of the control panel is provided with a plurality of grooves extending obliquely to the rear side, the main air inlet is located on the upper top surface of the grooves, and the generator air outlet is arranged as a grid extending obliquely downwards.
Preferably, the rear cover plate is provided with a plurality of forward hexagonal grooves, part of the hexagonal grooves are formed into through grooves which are communicated front and back, hexagonal blocking columns are arranged in the lower middle parts of the through grooves, and the auxiliary air inlets are formed by the blocking columns and the through grooves.
Further preferably, sound-absorbing cotton is arranged in the generator shell, the box body outer cover and the silencer outer cover.
The utility model has the beneficial effects that:
1) the box body outer cover is arranged outside the box body, sound-absorbing cotton is attached to the box body outer cover, the sound-absorbing cotton can absorb partial sound, and meanwhile, the second air duct can guide the sound in the shell and the sound of the motor into the silencer outer cover and then change directions and reduce noise for many times, so that the noise reduction effect of the engine is improved;
2) through increasing the box dustcoat of taking the box air intake, the case lid air intake, wind-guiding way and fan, make the generator when the operation, the cooling air is in getting into the generator casing by main air intake, under the effect of fan, it cools off the box in the box dustcoat to enter into along the box air intake, again along the case lid air intake get into in the motor cover, again along wind-guiding way and silencer air intake enter into the silencer dustcoat in cool off the muffler, then discharge along silencer air outlet and generator air outlet, it can take out the temperature in the generator casing, thereby reduce the inside temperature of generator, cool off the box simultaneously, and then guarantee the performance of unit, and the service life is prolonged.
Drawings
Fig. 1 is a first schematic view (from the front) of the present invention.
Fig. 2 is a second schematic view (from the back side) of the present invention.
Fig. 3 is a schematic view (from the front side) of an engine according to the present invention.
Fig. 4 is a schematic view (from the rear side) of the engine of the present invention.
Fig. 5 is a first air duct schematic diagram (one arrow identifies a first air duct, and two arrows identify a second air duct) of the present invention.
Fig. 6 is a second air duct schematic diagram (two arrows identify a second air duct, three arrows identify a third air duct, and four arrows identify that the second air duct and the third air duct are combined) of the present invention.
Fig. 7 is an exploded view of the engine of the present invention.
Fig. 8 is an exploded view of the muffler housing of the present invention.
Fig. 9 is a schematic view of a rear cover plate according to the present invention.
Detailed Description
The utility model will be further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1-9, a cooling air duct for a silent generator set, the generator set mainly comprises a generator casing and an engine arranged in the generator casing, the generator casing is composed of a plurality of casings including a control panel 1 and a back cover plate 2, the control panel 1 and the back cover plate 2 are respectively arranged at the front and back sides of the engine, the control panel 1 is provided with a main air inlet 1a for air intake, the back cover plate 2 is provided with a generator air outlet 2a for cooling air discharge, the engine comprises a box body 3 and a muffler 4, the front side of the box body 3 is provided with a start cover 5, the back side of the box body 3 is provided with a box cover 6, the back side of the box cover 6 is provided with a motor cover 7, a motor 8 is arranged in the motor cover 7, the cylinder end of the box body 3 is provided with a cylinder head assembly, the cylinder head assembly outer cover is provided with a cylinder head outer cover, a connecting pipe of the muffler 4 is arranged on the cylinder head assembly after passing through the cylinder head outer cover, the muffler 4 is covered by a muffler outer cover 9, and a muffler air outlet 9a is arranged on the muffler outer cover 9 corresponding to the position of the generator air outlet 2a, which is the prior art and is not described herein again.
The upper surface and the side surface of the box body 3 are provided with a box body outer cover 10 which can cover the cylinder head end of the box body 3 and the upper end of the box body 3, the box body outer cover 10 is provided with a box body air inlet 10a, the upper end of one side, close to the box body 3, of the box cover 6 is provided with a box cover air inlet 6a, and a fan 11 is arranged between the box cover 6 and the motor 8. A first air guide channel 6b is arranged on one side, close to the motor cover 7, of the box cover 6, a second air guide channel 7a matched with the first air guide channel 6b is arranged on one side, close to the box cover 6, of the motor cover 7, and the first air guide channel 6b and the second air guide channel 7a enclose an air guide channel. A silencer air inlet 9b is arranged at the upper end of the silencer outer cover 9 corresponding to the air guide duct, so that the following air duct is formed:
a first air duct: cooling air enters the generator shell from the main air inlet 1a, enters the cylinder head outer cover to cool the cylinder head component under the action of the starting cover 5, enters the silencer outer cover 9 along the connecting pipe to cool the silencer 4, and is discharged along the silencer air outlet 9a and the generator air outlet 2 a;
a second air duct: cooling air enters the generator shell from the main air inlet 1a, enters the box body outer cover 10 along the box body air inlet 10a to cool the box body 3 under the action of the fan 11, enters the motor cover 7 along the box cover air inlet 6a, enters the silencer outer cover 9 along the air guide duct and the silencer air inlet 9b to cool the silencer 4, and is discharged along the silencer air outlet 9a and the generator air outlet 2 a.
In order to facilitate the installation of the outer cover of the box body and not change the mold of the box body, the outer cover 10 of the box body comprises a first wind shield 10b, a second wind shield 10c and a third wind shield 10d, wherein the first wind shield 10b is arranged on one side of the starting cover 5 close to the box body 3 and extends towards the box body 3, the second wind shield 10c is arranged on the top surface of the box body 3, the third wind shield 10d is arranged on the side surface of the box body 3, and the air inlet 10a of the box body is arranged on the second wind shield 10 c. During installation, the first wind shield is installed on the side face of the box body along with the starting cover, then the second wind shield is installed on the first wind shield and the box cover, and finally the third wind shield is installed on the second wind shield, the first wind shield and the box cover.
In order to increase the cooling effect of the first air duct, a frequency converter air guide cover 12 capable of covering a frequency converter in the generator set is arranged between the control panel 1 and the starting cover 5, and an inner air inlet 12a is arranged on the frequency converter air guide cover 12.
In order to facilitate the installation of the muffler in the muffler housing, the muffler housing 9 includes an upper muffler cover 9c and a lower muffler cover 9d which are disposed up and down, wherein the muffler air inlet 9b is disposed on the lower muffler cover 9d, and the muffler air outlet 9a is defined by two semi-elliptical grooves disposed at the rear sides of the upper muffler cover 9c and the lower muffler cover 9 d. In order to prevent the first air duct and the second air duct from forming a cross in the muffler outer cover and causing disordered air exhaust, a wind shield 13 is arranged above the muffler air inlet 9b on the muffler lower cover 9d, and the wind shield 13 is arranged in the muffler upper cover 9 c.
In order to ensure that the cooling wind energy is directly discharged through the generator air outlet and cannot escape in the generator shell, an induced draft cover 14 is arranged between the silencer air outlet 9a and the generator air outlet 2 a.
The fan 11 is a bidirectional fan, a motor air inlet 7b is arranged at the rear side of the motor cover 7, and an auxiliary air inlet 2b is arranged on the rear cover plate 2. And a third air duct is formed, cooling air enters the generator shell from the auxiliary air inlet 2b under the action of the bidirectional fan, continues to enter the motor cover 7 along the motor air inlet 7b to cool the motor 8 under the action of the bidirectional fan, enters the silencer outer cover 9 along the air guide duct and the silencer air inlet 9b to cool the silencer 4, and is discharged along the silencer air outlet 9a and the generator air outlet 2 a. The motor is cooled through the motor in the air duct, and meanwhile, noise generated by the motor is brought into the silencer outer cover, and is reduced after being turned for many times.
In order to prevent the second air duct and the third air duct from crossing to cause disordered air exhaust, a case cover baffle 15 is arranged behind the case cover air inlet 6 a.
For preventing that the dust directly enters into in the motor under the effect of cooling air to influence the motor performance, set up the opposite side at motor air intake 7b at supplementary air intake 2b, in the cooling wind energy that simultaneously for guaranteeing to get into from supplementary air intake 2b mostly enters into the motor cover, be provided with the baffle 2c that the round extends forward in the position department that corresponds supplementary air intake 2b and motor air intake 7b in the front side of back shroud 2.
In order to prevent rainwater from entering the casing or directly transmitting sound, a plurality of notches 1b extending obliquely towards the rear side are arranged at the middle lower part of the control panel 1, the main air inlet 1a is positioned on the upper top surface of the notches 1b, and the generator air outlet 2a is arranged into a grid which is inclined downwards. Be provided with a plurality of forward hexagon groove 2d on back apron 2, some hexagon groove 2d sets up to the logical groove that link up around, is provided with hexagonal bumping post 2e at the lower middle part that leads to the groove, forms by bumping post 2e and leading to the groove at supplementary air intake 2 b.
In order to ensure the sound absorption effect of the generator, sound absorption cotton is arranged in the generator shell, the box body outer cover 10 and the silencer outer cover 9.
When the mute generator set of the embodiment is used for a mute test, the measured noise is 60-64db when the load is 25% and 7m away from the generator set, and the lower noise can reach 67-69db in the prior art.
Claims (10)
1. The utility model provides a cooling air duct for silence generator unit, generator unit includes generator housing and the engine of setting in generator housing, generator housing is formed by the combination of the polylith casing including control panel (1) and back shroud (2), control panel (1) and back shroud (2) set up both sides around the engine respectively, be provided with main air intake (1a) that is used for the air inlet on control panel (1), be provided with on back shroud (2) and be used for cooling air exhaust generator air outlet (2a), the engine includes box (3) and silencer (4), the front side of box (3) is provided with boot (5), the rear side of box (3) is provided with case lid (6), the rear side of case lid (6) is provided with motor cover (7), be provided with motor (8) in motor cover (7), the cylinder end of box (3) is provided with the cylinder end subassembly, cylinder end subassembly dustcoat is equipped with the cylinder end dustcoat, the connecting pipe of silencer (4) passes and sets up on the cylinder end subassembly behind the cylinder end dustcoat, silencer (4) dustcoat is equipped with silencer dustcoat (9), it is provided with silencer air outlet (9a) to correspond generator air outlet (2a) position department on silencer dustcoat (9), its characterized in that: the upper surface and the side surface of the box body (3) are provided with a box body outer cover (10) which can cover the cylinder head end of the box body (3) and the upper end of the box body (3), a box body air inlet (10a) is arranged on the box body outer cover (10), a box cover air inlet (6a) is arranged at the upper end of one side of the box cover (6) close to the box body (3), a fan (11) is arranged between the box cover (6) and the motor (8), a first air guide channel (6b) is arranged on one side of the box cover (6) close to the motor cover (7), a second air guide channel (7a) matched with the first air guide channel (6b) is arranged on one side of the motor cover (7) close to the box cover (6), the first air guide channel (6b) and the second air guide channel (7a) form an air guide channel, a silencer air inlet (9b) is formed in the upper end of the silencer outer cover (9) corresponding to the air guide duct;
the air conditioner comprises a first air duct formed by a main air inlet (1a), a starting cover (5), a cylinder head outer cover, a connecting pipe, a silencer outer cover (9), a silencer air outlet (9a) and a generator air outlet (2 a);
the air conditioner further comprises a second air channel formed by a main air inlet (1a), a generator shell, a fan (11), a box air inlet (10a), a box outer cover (10), a box cover air inlet (6a), a motor cover (7), an air guide channel, a silencer air inlet (9b), a silencer outer cover (9), a silencer air outlet (9a) and a generator air outlet (2 a).
2. The cooling duct for a silent generator set according to claim 1, characterized in that: the box body outer cover (10) comprises a first wind shield (10b), a second wind shield (10c) and a third wind shield (10d), the first wind shield (10b) is arranged on one side, close to the box body (3), of the starting cover (5) and extends towards the box body (3), the second wind shield (10c) is arranged on the top face of the box body (3), the third wind shield (10d) is arranged on the side face of the box body (3), and a box body air inlet (10a) is arranged on the second wind shield (10 c).
3. The cooling duct for a silent generator set according to claim 1, characterized in that: and a frequency converter air guide cover (12) capable of covering a frequency converter in the generator set is arranged between the control panel (1) and the starting cover (5), and an inner air opening (12a) is arranged on the frequency converter air guide cover (12).
4. The cooling duct for a silent generator set according to claim 1, characterized in that: the silencer air inlet (9b) is arranged on the silencer lower cover (9d), a wind shield (13) used for preventing the first air channel and the second air channel from being crossed is arranged above the silencer air inlet (9b) of the silencer lower cover (9d), the wind shield (13) is arranged in the silencer upper cover (9c), and the silencer air outlet (9a) is enclosed by two semi-elliptical grooves arranged on the rear sides of the silencer upper cover (9c) and the silencer lower cover (9 d).
5. The cooling duct for a silent generator set according to claim 1, characterized in that: and an induced draft cover (14) is arranged between the silencer air outlet (9a) and the generator air outlet (2 a).
6. The cooling duct for a silent generator set according to claim 1, characterized in that: the fan (11) is a bidirectional fan, a box cover baffle (15) is arranged behind the box cover air inlet (6a), a motor air inlet (7b) is arranged on the rear side of the motor cover (7), and an auxiliary air inlet (2b) is arranged on the rear cover plate (2);
the air conditioner also comprises a third air duct formed by an auxiliary air inlet (2b), a generator shell, a bidirectional fan, a motor air inlet (7b), a motor cover (7), an air guide duct, a silencer air inlet (9b), a silencer outer cover (9), a silencer air outlet (9a) and a generator air outlet (2 a).
7. The cooling duct for a silent generator set according to claim 6, characterized in that: the auxiliary air inlet (2b) is arranged on the other side of the motor air inlet (7b), and a circle of baffle (2c) extending forwards is arranged at the position, corresponding to the auxiliary air inlet (2b) and the motor air inlet (7b), of the front side of the rear cover plate (2).
8. The cooling duct for a silent generator set according to claim 1, characterized in that: the middle lower part of control panel (1) is provided with a plurality of and lacks groove (1b) to rear side slant extension, main air intake (1a) is located lacks the last top surface of groove (1b), generator air outlet (2a) sets up to oblique decurrent grid.
9. The cooling duct for a silent generator set according to claim 7, wherein: be provided with forward hexagon groove (2d) of a plurality of on back shroud (2), some hexagon groove (2d) set up to the logical groove that link up around, are provided with hexagonal bumping post (2e) at the lower middle part that leads to the groove, supplementary air intake (2b) are formed by bumping post (2e) and logical groove.
10. The cooling duct for a silent generator set according to claim 1, characterized in that: and sound absorption cotton is arranged in the generator shell, the box body outer cover (10) and the silencer outer cover (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220667803.2U CN216950542U (en) | 2022-03-24 | 2022-03-24 | Cooling air duct for silent generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220667803.2U CN216950542U (en) | 2022-03-24 | 2022-03-24 | Cooling air duct for silent generator set |
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| Publication Number | Publication Date |
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| CN216950542U true CN216950542U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220667803.2U Active CN216950542U (en) | 2022-03-24 | 2022-03-24 | Cooling air duct for silent generator set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645763A (en) * | 2022-03-24 | 2022-06-21 | 重庆鼎工机电有限公司 | Air duct of silent generator set |
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2022
- 2022-03-24 CN CN202220667803.2U patent/CN216950542U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645763A (en) * | 2022-03-24 | 2022-06-21 | 重庆鼎工机电有限公司 | Air duct of silent generator set |
| CN114645763B (en) * | 2022-03-24 | 2022-12-13 | 重庆鼎工机电有限公司 | Air duct of silent generator set |
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