CN201363176Y - Exhaust muffler device of low-noise vehicle-mounted power station - Google Patents
Exhaust muffler device of low-noise vehicle-mounted power station Download PDFInfo
- Publication number
- CN201363176Y CN201363176Y CNU2009200672681U CN200920067268U CN201363176Y CN 201363176 Y CN201363176 Y CN 201363176Y CN U2009200672681 U CNU2009200672681 U CN U2009200672681U CN 200920067268 U CN200920067268 U CN 200920067268U CN 201363176 Y CN201363176 Y CN 201363176Y
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- muffler
- power station
- low
- diesel engine
- noise
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Abstract
The utility model discloses an exhaust muffler device of a low-noise vehicle-mounted power station, which can effectively reduce the exhaust noise when the power station works. The low-noise vehicle-mounted power station comprises a vehicle system with a vehicle chassis and a carriage, a diesel generating unit, a control and operating system and an outlet cable system, wherein the middle part of the carriage is a machine unit cabin used for mounting the diesel generating unit and the front part or the back part thereof is a muffler chamber; and the air discharge end of the diesel generating unit faces towards one end of the muffler chamber. The exhaust muffler device comprises a corrugated damping section, a reactive muffler and a dissipative muffler, wherein the corrugated damping section is arranged on the exhaust pipe of the diesel engine and close to the exhaust port of the diesel engine, the reactive muffler and the dissipative muffler are both arranged inside the muffler chamber, and the exhaust pipe of the diesel engine is connected in series with the dissipative muffler and the reactive muffler in sequence and is connected in the position of a through-hole on the rear wall of the muffler chamber through a smoke exhaust pipe connected to the reactive muffler.
Description
Technical field
The utility model relate to a kind of when being used to eliminate power station work exhaust sound to the air exhaust muffler device of the low-noise vehicle-mounted power station of the influence of environment.
Background technique
Vehicle-mounted power station is used for power failure can produce the places such as electric power, communication, emergency dealing and military affairs that have a strong impact on, and makes motor-driven emergency standby power.Traditional vehicle-mounted power station generally can only be realized the mobility emergency service, and exhaust sound, mechanical noise and combustion noise during when power supply diesel generating set work have become a difficult problem of not understanding together.Exhaust sound is the major component of power station engine air aerodynamic noise, and its noise is generally wanted the high 10-15dB of ratio engine complete machine (A), is the part that at first will carry out noise reduction control.If do not take necessary noise reduction measure, the vibrations during unit operation, noise will cause serious harm to surrounding environment.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of air exhaust muffler device of low-noise vehicle-mounted power station to be provided, and the exhaust sound when it can effectively reduce power station work satisfies the requirement of power station low noise work.
The technological scheme that realizes above-mentioned purpose is:. a kind of air exhaust muffler device of low-noise vehicle-mounted power station, described low-noise vehicle-mounted power station comprises the onboard system that contains automobile chassis and compartment, the diesel generating set that contains unit base, diesel engine, generator, cooling water tank and outlet pipe, control and operation system and outlet cable system, wherein
The middle part in described compartment is the crew compartment that is used to install diesel generating set, and front portion or rear portion are the silencing apparatus chamber;
The air outlet of described diesel generating set is towards an end of silencing apparatus chamber;
Described air exhaust muffler device comprises ripple shock-absorbing joint, a reactive muffler and a dissipative muffler, described ripple shock-absorbing joint is located on the outlet pipe of diesel engine and near the relief opening of diesel engine, it is indoor that described reactive muffler and dissipative muffler are installed in silencing apparatus, the outlet pipe of described diesel engine is connected in series with dissipative muffler and reactive muffler successively, and is connected perforation place that smoke-ejecting pipe on the reactive muffler is connected to silencing apparatus chamber rear wall by one.
The air exhaust muffler device of above-mentioned low-noise vehicle-mounted power station, wherein, the outlet pipe of described diesel engine is to be connected in series with described dissipative muffler and reactive muffler successively after entering the silencing apparatus chamber by an elbow connection.
The air exhaust muffler device of above-mentioned low-noise vehicle-mounted power station, wherein, described smoke-ejecting pipe is installed a rainhat on the end of rear wall perforation place that is positioned at the silencing apparatus chamber.
The technological scheme of the air exhaust muffler device of low-noise vehicle-mounted power station of the present utility model, utilize difform pipeline and resonant cavity to carry out suitable combination, reflection and interference effect that the acoustic impedance that causes by means of the variation of pipeline section and shape does not match and produced, reach the purpose of attenuate acoustic noise, therefore the exhaust sound in the time of effectively reducing power station work satisfies the requirement of power station low noise work.
Description of drawings
Fig. 1 is the structural representation of the air exhaust muffler device of low-noise vehicle-mounted power station of the present utility model;
Fig. 2 is the side view of Fig. 1.
Embodiment
In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:
See also Fig. 1 and Fig. 2, low-noise vehicle-mounted power station comprises the onboard system that contains automobile chassis and compartment, the diesel generating set that contains unit base, diesel engine, generator and cooling water tank, control and operation system and outlet cable system, wherein,
Onboard system comprises automobile chassis 1 and compartment 2, and the middle part in compartment 2 is the crew compartment 21 that is used to install diesel generating set, and front portion or rear portion are silencing apparatus chamber 22;
Diesel generating set comprises unit base 31, diesel engine 32, generator 33 and cooling water tank 34, outlet pipe 35, and the air outlet of unit is towards an end of silencing apparatus chamber 22, and outlet pipe 35 is connected on the relief opening 36 of diesel engine 32;
Control and operating system installation be 2 rear portion or front portion in the compartment, it comprises control panel and electric power air-break switch, control panel provides the function that manually boots diesel generating set, can monitor the operation of diesel generating set automatically, the protective function of diesel generating set is provided, provide unit operation each parameter index gauge on the panel of control panel, make things convenient for the user to check set state intuitively; In order to protect alternator not by overburdening electric current and other unusual impact failure, power output end at diesel generating set is equipped with an electric power air-break switch that matches with unit, it is installed in one independently in the special switch case, and the outlet terminal of electric power air-break switch is connected with female board of outlet cable system;
The outlet cable system is installed in the rear portion of automobile chassis 1, it comprises electronic cable hoist and is coiled in rubber flexible cable on the electronic cable hoist, cable length is 30～100 meters, electronic cable hoist, can finish the operation of plugging into of power cable safely and fast, the user is when carrying out power connection, and power cable is connected with female board of outlet cable system and gets final product, and can finish vehicle power in the very first time and be transported to user side.
The air exhaust muffler device of low-noise vehicle-mounted power station of the present utility model, comprise ripple shock-absorbing joint 41, a dissipative muffler 42 and a reactive muffler 43, ripple shock-absorbing joint 41 is located on the outlet pipe 35 and the relief opening 36 of close diesel engine 32, the mechanical vibration that produce when being used to separate diesel engine 32 work are to the influence of silencer, the compensation of also expanding with heat and contract with cold as vent systems simultaneously; Dissipative muffler 42 and reactive muffler 43 are installed in the silencing apparatus chamber 22; Two of ripple shock-absorbing joint 41 connects an outlet pipe 35 and an elbow connection 37 respectively, elbow connection 37 is connected with reactive muffler 43 with dissipative muffler 42 after entering silencing apparatus chamber 22 successively, and is connected perforation place that smoke-ejecting pipe 44 on the reactive muffler 43 is connected to silencing apparatus chamber 22 rear walls by one.
The combination of dissipative muffler 42 and reactive muffler 43 makes that high, medium and low frequency range noise reduction reaches best noise elimination effect in the exhaust sound, discharges outside the vehicle-mounted power station crew compartments 21 by smoke-ejecting pipe 44 through the motor exhaust of eliminating the noise after handling.Dissipative muffler 42 is to utilize sound-absorbing porous material, be arranged in the pipeline in a certain way, when air communication is crossed dissipative muffler, sound wave just causes the air in the sound-absorbing material hole and the vibrations of fiber fines, because friction and viscous resistance, acoustic energy becomes heat energy and absorbs, thereby plays the noise elimination effect, is mainly used in to eliminate the exhaust high-frequency noise; Reactive muffler 43 is to utilize difform pipeline and resonant cavity to carry out suitable combination, reflection and interference effect that the acoustic impedance that causes by means of the variation of pipeline section and shape does not match and produced, reach the purpose of attenuate acoustic noise, be applicable to subduing of narrow band noise and low, Mid Frequency noise.Reactive muffler 43 outlets are run in smoke pipe 44 discharging outside the crew compartment 21 through the tail gas of the diesel engine 32 after handling of eliminating the noise;
Be positioned at smoke-ejecting pipe 44 on the end of rear wall perforation place of silencing apparatus chamber 22 rainhat 45 is installed, when exhaust, can open automatically, in case rainwater enters.When do not work in the power station, rainhat 45 utilizes deadweight that smoke-ejecting pipe 44 is covered, and air-flow is washed rainhat 45 open during the work of power station, and rainhat 45 is adjusted opening angle automatically by the counterweight of hinge and afterbody, satisfies the requirement of power station air displacement.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model the above embodiment's variation, modification.
Claims (3)
1. the air exhaust muffler device of a low-noise vehicle-mounted power station, described low-noise vehicle-mounted power station comprises the onboard system that contains automobile chassis and compartment, the diesel generating set that contains unit base, diesel engine, generator, cooling water tank and outlet pipe, control and operation system and outlet cable system, it is characterized in that
The middle part in described compartment is the crew compartment that is used to install diesel generating set, and front portion or rear portion are the silencing apparatus chamber;
The air outlet of described diesel generating set is towards an end of silencing apparatus chamber;
Described air exhaust muffler device comprises ripple shock-absorbing joint, a reactive muffler and a dissipative muffler, described ripple shock-absorbing joint is located on the outlet pipe of diesel engine and near the relief opening of diesel engine, it is indoor that described reactive muffler and dissipative muffler are installed in silencing apparatus, the outlet pipe of described diesel engine is connected in series with dissipative muffler and reactive muffler successively, and is connected perforation place that smoke-ejecting pipe on the reactive muffler is connected to silencing apparatus chamber rear wall by one.
2. the air exhaust muffler device of low-noise vehicle-mounted power station according to claim 1 is characterized in that, the outlet pipe of described diesel engine is to be connected in series with described dissipative muffler and reactive muffler successively after entering the silencing apparatus chamber by an elbow connection.
3. the air exhaust muffler device of low-noise vehicle-mounted power station according to claim 1 is characterized in that, described smoke-ejecting pipe is installed a rainhat on the end of rear wall perforation place that is positioned at the silencing apparatus chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200672681U CN201363176Y (en) | 2009-01-22 | 2009-01-22 | Exhaust muffler device of low-noise vehicle-mounted power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200672681U CN201363176Y (en) | 2009-01-22 | 2009-01-22 | Exhaust muffler device of low-noise vehicle-mounted power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363176Y true CN201363176Y (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200672681U Expired - Lifetime CN201363176Y (en) | 2009-01-22 | 2009-01-22 | Exhaust muffler device of low-noise vehicle-mounted power station |
Country Status (1)
| Country | Link |
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| CN (1) | CN201363176Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963098A (en) * | 2010-10-14 | 2011-02-02 | 上海科泰电源股份有限公司 | Air intake and exhaust device of air-cooling type low-noise diesel power generating set |
| CN103114901A (en) * | 2013-02-22 | 2013-05-22 | 中国北方车辆研究所 | Radial type flexible smoke exhausting device |
| CN104373182A (en) * | 2014-12-08 | 2015-02-25 | 广西玉柴机器股份有限公司 | Rainproof muffler |
| CN105351090A (en) * | 2015-10-29 | 2016-02-24 | 泰豪电源技术有限公司 | Stereoscopic stacking ultra-silence power source for standard containers |
-
2009
- 2009-01-22 CN CNU2009200672681U patent/CN201363176Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963098A (en) * | 2010-10-14 | 2011-02-02 | 上海科泰电源股份有限公司 | Air intake and exhaust device of air-cooling type low-noise diesel power generating set |
| CN103114901A (en) * | 2013-02-22 | 2013-05-22 | 中国北方车辆研究所 | Radial type flexible smoke exhausting device |
| CN103114901B (en) * | 2013-02-22 | 2015-04-08 | 中国北方车辆研究所 | Radial type flexible smoke exhausting device |
| CN104373182A (en) * | 2014-12-08 | 2015-02-25 | 广西玉柴机器股份有限公司 | Rainproof muffler |
| CN105351090A (en) * | 2015-10-29 | 2016-02-24 | 泰豪电源技术有限公司 | Stereoscopic stacking ultra-silence power source for standard containers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Qingpu Tianchen road 201712 Shanghai City Park of Zhangjiang High tech Zone No. 1633 Patentee after: Shanghai Cooltech Power Co., Ltd. Address before: Qingpu Industrial Park Qingpu District Shanghai city 201703 Songhua Road No. 888 Patentee before: Shanghai Cooltech Power Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091216 |
|
| CX01 | Expiry of patent term |