CN2232487Y - Recuperative dissipative muffler for diesel engine - Google Patents
Recuperative dissipative muffler for diesel engine Download PDFInfo
- Publication number
- CN2232487Y CN2232487Y CN 95239777 CN95239777U CN2232487Y CN 2232487 Y CN2232487 Y CN 2232487Y CN 95239777 CN95239777 CN 95239777 CN 95239777 U CN95239777 U CN 95239777U CN 2232487 Y CN2232487 Y CN 2232487Y
- Authority
- CN
- China
- Prior art keywords
- tube
- outer cylinder
- cylinder body
- heat conducting
- efficient heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model relates to a dissipative muffler used for a diesel engine. An intermediate bottom is arranged at the upper part of the inner of an outer cylinder. The outer cylinder is split into an upper water tank and a lower muffling recuperator. An upper central tube and a lower central tube connected with each other run through the outer cylinder. The connecting is positioned in the lower muffling recuperator, and the connecting is separated by the intermediate bottom. Vent holes are arranged on the tube wall of the upper and the lower central tubes positioned in the lower muffling recuperator. The inner of the outer cylinder is provided with multi-root high efficiency heat-transfer tubes which run through the intermediate bottom. The undercut of the lower central tube is connected with an exhaust tube of a diesel. The back cut of the upper central tube is led out and communicated with atmospheric air.
Description
The utility model relates to the used silencing apparatus of a kind of diesel engine.
Existing diesel engine noise is very big, and this is well-known.Though noise does not have pollutant, can not accumulate again, its energy disappears and is the heat energy of air, and the noise continuous action that surpasses 90 decibels (A) will cause temporary threshold of audibility migration in people's ear.Sound intensity increase or exposure time are long, also can cause permanent threshold of audibility migration, cause hearing loss and deafness.In addition the thermal efficiency of diesel engine, with regard to domestic situation, be generally 30-45%, that is to say that the heat energy more than 50% has slatterned in vain.Pai Fang high-temp waste gas wherein, the thermal loss maximum accounts for 25-40%, and this almost approaches to change into the heat of effective merit.In order to improve the thermal efficiency of motor, many scientific workers carried out a large amount of tests and discussion, had also obtained certain achievement.But supercharged diesel engine, the heat energy of the high-temp waste gas behind the exhaust turbocharger turbine, and the recycling problem of naturally aspirated Diesel exhausting heat energy are not still solved preferably.
The purpose of this utility model exactly in order to address the above problem, to provide a kind of and can reduce diesel exhaust noise, can recycle the diesel engine heat exchange-type silencing apparatus of exhaust heat again.
Technical solution of the present utility model:
A kind of diesel engine heat exchange-type silencing apparatus, it is by last, lower center tube (1), (2) and outer cylinder body (3) form, on its outer cylinder body (3), the lower end is connected with, following shrouding (4), (5), it is characterized in that the top in outer cylinder body (3) is provided with intermediate clapboard (6), it is divided into upper water box chamber (7) and following noise reduction heat exchanger (8) with outer cylinder body (3), and the bottom of upper water box chamber (7) and top are respectively equipped with water intake (9) and water outlet (10), on, lower center tube (1), (2) connect and pass outer cylinder body (3), its joint is positioned at the following noise reduction heat exchanger (8) of outer cylinder body (3), and on, lower center tube (1), (2) joint is separated by dividing plate (11) and is held together, being positioned at down, upper center tube (1) the bottom tube wall and lower center tube (2) the top tube wall of noise reduction heat exchanger (8) all have vent (12), be provided with the many efficient heat conducting tubes (13) that pass intermediate clapboard (6) in the outer cylinder body (3), and be connected with the noise reduction heat exchange sheet (14) of band splitter shape on one section outer tube wall under being positioned at of each efficient heat conducting tube (13) in the noise reduction heat exchanger (8), the end opening of lower center tube (2) is connected with the outlet pipe of diesel engine, and suitable for reading the drawing with atmosphere of upper center tube (1) communicates.
The utlity model has following characteristics:
1. the exhaust sound of diesel engine can be obviously reduced, exhaust heat can be reclaimed efficiently again simultaneously.
2. when noise reduction measure comprehensively adopts acoustic reflection, refraction and expansion, adopted the measure that reduces delivery temperature significantly again, exhaust gas temperature is reduced, density increases, volume-diminished, and then reach the purpose that makes airspeed reduce further to reduce noise.
3. the employing high-performance heat transfer components has advantages such as thermal resistance is little, heat transfer efficiency is high, upper and lower temperature difference is little, the heat transfer direction is irreversible.
4. the heat exchange water tank on heat exchange-type silencing apparatus top can add hot water or boils water.Add that auxiliary device then becomes the small-sized sea water desalinating unit of evaporative type.
5. simple in structure, volume is little, easily manufactured, use reliable.
6. consumes energy not when using.
The utility model mainly is applicable to the noise reduction and the heat recovery of diesel engines such as middle-size and small-size marine diesel engine, diesel generating set, diesel compressor group, engineering machinery mating power.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
As Fig. 1 .2, the vent (12) on the upper and lower center tube of the utility model (1), (2) tube wall is preferably perpendicular slotted hole, and is evenly distributed on the tube wall of upper and lower center tube (1), (2).Preferably be provided with the efficient heat conducting tube (13) of a circle dense arrangement in the outer cylinder body (3), and the internal diameter that should enclose efficient heat conducting tube (13) formation merges near contacting with the external diameter kissing of the dividing plate (11) of upper and lower center tube (1), (2) joint, establish a circle efficient heat conducting tube (13) again in the periphery of this intensive efficient heat transfer pipeloop, each efficient heat conducting tube of this outer ring (13) is positioned at the position between the inner ring two adjacent efficient heat conducting tubes (13), makes that inside and outside two circle efficient heat conducting tubes are staggered.Above-mentioned two circle efficient heat conducting tubes (13) can adopt two-phase closed type hot siphon, and it has, and price is low, easy to manufacture, the heat transfer efficiency advantages of higher.
When the utility model used, the water intake (9) of the upper water box chamber (7) of its outer cylinder body (3) connect cold water source, and its water outlet (10) connects hot water tank, and cold water source is sent constantly into upper water box chamber (7) during work.When the high-temp waste gas of diesel engine during by vertical slot shape vent (12) ejection of lower center tube (2), impact the noise reduction heat exchange sheet (14) of staggered inside and outside two circle efficient heat conducting tubes (13) and intensive band splitter shape thereof, sound wave makes noise attentuation after repeatedly reflecting, reflect and expanding.Discharge from its outlet through the vertical slot shape vent (12) of upper center tube (1) then.On the other hand, impact efficient heat conducting tube (13) and noise reduction heat exchange sheet (14) at high-temp waste gas, when making noise attentuation, high-temp waste gas again and efficient heat conducting tube (13) carry out heat exchange, make that exhaust gas temperature reduces significantly, density increases, volume-diminished, therefore makes the exhaust flow prompt drop low and play the effect of further reduction noise.After efficient heat conducting tube (13) carried out heat exchange with high-temp waste gas, heat exchange was carried out in the upper water box chamber (7) that heat energy is delivered to outer cylinder body (3) internal upper part, emits heat energy, made the water heating, reached the purpose of heat recovery.
Claims (4)
1. diesel engine heat exchange-type silencing apparatus, it is by last, lower center tube (1), (2) and outer cylinder body (3) form, on its outer cylinder body (3), the lower end is connected with, following shrouding (4), (5), it is characterized in that the top in outer cylinder body (3) is provided with intermediate clapboard (6), it is divided into upper water box chamber (7) and following noise reduction heat exchanger (8) with outer cylinder body (3), and the bottom of upper water box chamber (7) and top are respectively equipped with water intake (9) and water outlet (10), on, lower center tube (1), (2) connect and pass outer cylinder body (3), its joint is positioned at the following noise reduction heat exchanger (8) of outer cylinder body (3), and on, lower center tube (1), (2) joint is separated by dividing plate (11) and is held together, being positioned at down, upper center tube (1) the bottom tube wall and lower center tube (2) the top tube wall of noise reduction heat exchanger (8) all have vent (12), be provided with the many efficient heat conducting tubes (13) that pass intermediate clapboard (6) in the outer cylinder body (3), and be connected with the noise reduction heat exchange sheet (14) of band splitter shape on one section outer tube wall under being positioned at of each efficient heat conducting tube (13) in the noise reduction heat exchanger (8), the end opening of lower center tube (2) is connected with the outlet pipe of diesel engine, and suitable for reading the drawing with atmosphere of upper center tube (1) communicates.
2. by the described diesel engine heat exchange-type of claim 1 silencing apparatus, it is characterized in that the vent (12) on described upper and lower center tube (1), (2) tube wall is preferably perpendicular slotted hole, and be evenly distributed on the tube wall of upper and lower center tube (1), (2).
3. by the described diesel engine heat exchange-type of claim 1 silencing apparatus, it is characterized in that preferably being provided with in the outer cylinder body (3) efficient heat conducting tube (13) of a circle dense arrangement, and the internal diameter that should enclose efficient heat conducting tube (13) formation merges near contacting with the external diameter kissing of the dividing plate (11) of upper and lower center tube (1), (2) joint, establish a circle efficient heat conducting tube (13) again in the periphery of this intensive efficient heat transfer pipeloop, each efficient heat conducting tube of this outer ring (13) is positioned at the position between the inner ring two adjacent efficient heat conducting tubes (13), makes that inside and outside two circle efficient heat conducting tubes are staggered.
4. by claim 1 or 3 described diesel engine heat exchange-type silencing apparatuss, it is characterized in that described efficient heat conducting tube (13) adopts two-phase closed type hot siphon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239777 CN2232487Y (en) | 1995-05-18 | 1995-05-18 | Recuperative dissipative muffler for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239777 CN2232487Y (en) | 1995-05-18 | 1995-05-18 | Recuperative dissipative muffler for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2232487Y true CN2232487Y (en) | 1996-08-07 |
Family
ID=33881497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95239777 Expired - Fee Related CN2232487Y (en) | 1995-05-18 | 1995-05-18 | Recuperative dissipative muffler for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2232487Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230409A (en) * | 2011-06-27 | 2011-11-02 | 胡洪霞 | Water-cooling silencer |
| CN103133124A (en) * | 2013-03-07 | 2013-06-05 | 刘小江 | Device and method for improving work efficiency of engine and reducing emission of harmful gas |
| CN107420172A (en) * | 2017-06-30 | 2017-12-01 | 高志男 | Heat exchanging silencer |
-
1995
- 1995-05-18 CN CN 95239777 patent/CN2232487Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230409A (en) * | 2011-06-27 | 2011-11-02 | 胡洪霞 | Water-cooling silencer |
| CN103133124A (en) * | 2013-03-07 | 2013-06-05 | 刘小江 | Device and method for improving work efficiency of engine and reducing emission of harmful gas |
| CN103133124B (en) * | 2013-03-07 | 2016-08-03 | 湖南农业大学 | Engine operating efficiency the method reducing noxious gas emission can be improved |
| CN107420172A (en) * | 2017-06-30 | 2017-12-01 | 高志男 | Heat exchanging silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |