CN218542371U - Waste heat recovery system for marine main engine - Google Patents
Waste heat recovery system for marine main engine Download PDFInfo
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- CN218542371U CN218542371U CN202223210555.8U CN202223210555U CN218542371U CN 218542371 U CN218542371 U CN 218542371U CN 202223210555 U CN202223210555 U CN 202223210555U CN 218542371 U CN218542371 U CN 218542371U
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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
- 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
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Abstract
The utility model discloses a waste heat recovery system of a marine main engine, which comprises a gas recovery mechanism and a heat exchange mechanism, wherein the gas recovery mechanism comprises a gas inlet pipe body and a first gas purification unit; the heat exchange mechanism comprises a heat exchange cylinder, a second gas purification unit, a flow distribution pipe body, an exhaust pipe body, a water inlet pipe body and a water drainage pipe body; a filtering cavity and a circulating water cavity are arranged in the heat exchange cylinder, the air inlet pipe body is communicated with the second air purifying unit, the other end of the second air purifying unit is communicated with the flow dividing pipe body, the other end of the flow dividing pipe body is communicated with the exhaust pipe body, the water inlet pipe body is communicated with the circulating water cavity, and the water discharge pipe body is communicated with the circulating water cavity; high-temperature waste gas discharged by the ship main engine is subjected to secondary purification through the first gas purification unit and the second gas purification unit before entering the shunt pipe body, so that impurities carried in the waste gas can be removed, and impurities attached to the shunt pipe body can be effectively reduced; through the increase of reposition of redundant personnel body and the area of contact of heat transfer liquid, realize heat recovery and improve recovery efficiency.
Description
Technical Field
The utility model belongs to boats and ships waste heat recovery field, in particular to boats and ships host computer waste heat recovery system.
Background
Along with the related planning of carbon peak-to-peak and carbon neutralization targets set in China, energy conservation and emission reduction become targets of various industries, records are continuously refreshed in import and export trades in China, especially in the large environment of global epidemic situations, and energy conservation requirements for the shipping industry also become key monitoring objects.
The consumption of the ship during navigation mainly comes from a main engine of the ship, a large amount of high-temperature flue gas can be generated when the main engine runs, the high-temperature flue gas contains a large amount of heat, and if the high-temperature flue gas is directly discharged into the air, the heat can be wasted; if the high-temperature flue gas is recycled, the recycling system in the prior art is easily attached by impurities in the high-temperature flue gas, so that the recycling efficiency is low.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the above insufficiency, the utility model aims at providing a boats and ships host computer waste heat recovery system, its simple structure, reasonable in design, easily production can retrieve the high temperature flue gas when the boats and ships host computer moves to realize high-efficient heat recovery, improved energy-conserving efficiency.
The technical scheme is as follows: a waste heat recovery system of a marine main engine comprises a gas recovery mechanism and a heat exchange mechanism, wherein the gas recovery mechanism comprises a gas inlet pipe body and a first gas purification unit, and the first gas purification unit is communicated with the gas inlet pipe body; the heat exchange mechanism comprises a heat exchange cylinder, a second gas purification unit, a flow distribution pipe body, an exhaust pipe body, a water inlet pipe body and a water drainage pipe body; the heat exchange cylinder is internally provided with a filter cavity and a circulating water cavity, the filter cavity is positioned on one side of the circulating water cavity, the second gas purification unit is arranged in the filter cavity, the gas inlet pipe body is arranged at one end of the heat exchange cylinder and is communicated with the second gas purification unit, the other end of the second gas purification unit is communicated with the diversion pipe body, the other end of the diversion pipe body is communicated with the exhaust pipe body, the water inlet pipe body is arranged on one side of the heat exchange cylinder and is communicated with the circulating water cavity, and the drainage pipe body is arranged on the other side of the heat exchange cylinder and is communicated with the circulating water cavity; boats and ships host computer exhaust waste gas carries out preliminary purification through first gas purification unit earlier, gets into the heat transfer section of thick bamboo again and purifies once more through second gas purification unit, and the high temperature waste gas after the purification gets into the low temperature liquid that the reposition of redundant personnel body transmitted the heat for the circulating water intracavity, can effectively reduce adnexed impurity on the reposition of redundant personnel body, realizes heat recovery and improves recovery efficiency.
Preferably, a partition plate body is arranged between the filter cavity and the circulating water cavity, a heat insulation plate body is arranged on at least one side of the partition plate body, a plurality of overlapped through holes are formed in the partition plate body and the heat insulation plate body, and the through holes are communicated with the flow distribution pipe body; the partition plate body can reduce the heat transferred from the circulating water cavity to the filtering cavity.
Preferably, the outer wall of the shunt pipe body is provided with a heat conducting piece, and the heat conducting piece is provided with a flow guide groove; the heat conducting piece can increase the contact area of the shunt pipe body and liquid, so that the recovery efficiency is improved.
Preferably, the extending direction of the diversion trench is consistent with the water flow direction in the circulating water cavity; the heat conducting member can prevent liquid from generating turbulence.
Preferably, the heat exchange mechanism further comprises a thermometer, one end of the thermometer is inserted into the circulating water cavity, and the other end of the thermometer is positioned outside the heat exchange cylinder; the thermometer is convenient for observing the water temperature in the circulating water cavity.
Preferably, first net gas unit includes first filter screen, and second net gas unit includes the second filter screen, first filter screen and second filter screen all set up to a plurality of layers of lamellar structure, through first filter screen and second filter screen reduce the impurity that the waste gas that gets into the reposition of redundant personnel body carried.
Preferably, the mesh diameter of the second filter is larger than that of the first filter; impurities are further reduced through the second filter screen, and the passing speed of the waste gas is improved.
Preferably, the air inlet pipe body and the first air purifying unit are externally provided with heat insulation layers; the temperature of the waste gas before entering the heat exchange cylinder is reserved through the heat insulation layer.
Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:
1. high-temperature waste gas discharged by a ship main engine is firstly primarily purified by the first gas purification unit and then enters the heat exchange cylinder to be purified again by the second gas purification unit, and impurities can be removed by secondary purification before the high-temperature waste gas enters the shunt pipe body, so that the impurities attached to the shunt pipe body can be effectively reduced; the high temperature waste gas after the purification gets into the reposition of redundant personnel body and gives the low temperature liquid of circulating water intracavity with heat transfer, through the reposition of redundant personnel body increases the area of contact with heat transfer liquid, realizes heat recovery and improves recovery efficiency.
2. The heat transfer pipe is characterized in that a heat conducting piece is arranged on the flow dividing pipe body, a flow guide groove is formed in the heat conducting piece, the flow guide groove can further increase the contact area with heat transfer liquid, the extending direction of the flow guide groove is consistent with the water flow direction, and the heat transfer liquid can be prevented from generating turbulence.
Drawings
Fig. 1 is a schematic structural view of a waste heat recovery system of a marine main engine according to the present invention;
fig. 2 is a schematic structural view of the inside of the heat exchange cylinder according to the present invention;
fig. 3 is a schematic structural view of a cross section of the heat conducting member according to the present invention;
fig. 4 is a schematic structural view of the thermometer of the present invention;
FIG. 5 is a schematic structural view of the heat insulating layer of the present invention;
in the figure: the gas recovery device comprises a gas recovery mechanism 1, a gas inlet pipe body 11, a first gas purification unit 12, a first filter screen 121, a heat preservation layer 13, a heat exchange mechanism 2, a heat exchange cylinder 21, a filter cavity 211, a circulating water cavity 212, a second gas purification unit 22, a second filter screen 221, a flow dividing pipe body 23, a heat conducting piece 231, a flow guide groove 232, an exhaust pipe body 24, a water inlet pipe body 25, a water drainage pipe body 26, a separation plate body 27, a heat insulation plate body 271 and a thermometer 28.
Detailed Description
The invention will be further elucidated with reference to the drawings and the embodiments.
Examples
The embodiment provides a ship host waste heat recovery system, including gas recovery mechanism 1 and heat transfer mechanism 2, the exhaust end intercommunication of gas recovery mechanism 1 and ship host computer, the high temperature waste gas that ship host computer discharged gets into gas recovery mechanism 1, gas recovery mechanism 1 and heat transfer mechanism 2 intercommunication.
Specifically, as shown in fig. 1, the gas recovery mechanism 1 includes a gas inlet pipe 11 and a first gas purification unit 12, the gas inlet pipe 11 includes two sections of pipes, one of the sections of pipes communicates with a waste gas exhaust end of the main engine and a gas inlet end of the first gas purification unit 12, and the other section of pipes communicates with a gas exhaust end of the first gas purification unit 12.
As shown in fig. 1, the heat exchange mechanism 2 includes a heat exchange cylinder 21, a second gas purification unit 22, a diversion pipe body 23, an exhaust pipe body 24, a water inlet pipe body 25, and a water drain pipe body 26; the heat exchange tube 21 is of a double-layer heat preservation structure and has heat insulation and heat preservation functions, two connecting ports are formed in two opposite end faces of the heat exchange tube 21, one of the connecting ports is communicated with one end of the air inlet tube body 11, and the other connecting port is communicated with one end of the exhaust tube body 24.
Two connecting ports are also formed in the side face of the heat exchange cylinder 21, one connecting port is communicated with one end of the water inlet pipe body 25, the other connecting port is communicated with one end of the water drainage pipe body 26, and the heat exchange liquid is in a mode of entering from bottom to top.
The inside of heat exchanger tube 21 is provided with filter chamber 211 and circulating water chamber 212, filter chamber 211 is located one side of circulating water chamber 212, and is close to in gas recovery mechanism 1, second net gas unit 22 sets up in filter chamber 211, reposition of redundant personnel body 23 sets up in circulating water chamber 212, and its one end and filter chamber 211 intercommunication, other end and exhaust body 24 intercommunication, wherein, intake body 11 lets in high temperature waste gas filter chamber 211, exhaust body 24 is with waste gas exhaust heat exchanger tube 21, intake body 25 lets in circulating water chamber 212 with heat-transfer liquid, drainage body 26 is with heat-transfer liquid exhaust heat exchanger tube 21.
The first and second gas purification units 12 and 22 purify the exhaust gas before the exhaust gas enters the shunt pipe body 23, so that the exhaust gas entering the shunt pipe body 23 has a low impurity content.
It is conceivable to add a third scrubber unit to the exhaust pipe body 24, by means of which the exhaust gas is cleaned before being discharged, the third scrubber unit having a similar construction to that of the first scrubber unit 12.
Further, as shown in fig. 2, a partition plate body 27 is disposed between the filter cavity 211 and the circulating water cavity 212, the partition plate body 27 can hermetically partition the filter cavity 211 and the circulating water cavity 212, at least one side of the partition plate body 27 is provided with a heat insulation plate body 271, the heat insulation plate body 271 is disposed at a side close to the filter cavity 211, and the heat insulation plate body 271 can insulate heat transfer between the filter cavity 211 and the circulating water cavity 212. The dividing plate body 27 and the heat insulation plate body 271 are provided with a plurality of overlapped through holes, and the dividing pipe body 23 is communicated with the through holes.
Conceivably, the joints of the pipe bodies are sealed, and the sealing materials are glass cement or structural cement, so that the overflow of waste gas or heat exchange liquid can be prevented.
Further, as shown in fig. 2, the outer wall of reposition of redundant personnel body 23 is fitted with a contraceptive ring and is equipped with a plurality of heat-conducting pieces 231, and each heat-conducting piece 231 sets up and is cyclic annularly, and the heat-conducting piece 231 on same reposition of redundant personnel body 23 is the equidistance array, and the heat-conducting piece 231 that is the equidistance array can make low temperature heat transfer liquid be heated more evenly, and the heat-conducting piece 231 on the adjacent reposition of redundant personnel body 23 is the dislocation array, and the heat-conducting piece 231 that is the dislocation arrangement can make the overall arrangement of each reposition of redundant personnel body 23 compacter, improves heat exchange efficiency. As shown in fig. 3, the heat conducting member 231 is provided with a flow guiding groove 232, an extending direction of the flow guiding groove 232 is the same as a water flow direction in the circulating water cavity 212, and the heat conducting member 231 can also prevent the heat exchange fluid from generating turbulence.
Further, as shown in fig. 4, the heat exchange mechanism 2 further includes a thermometer 28, one end of the thermometer 28 is inserted into the circulating water cavity 212, and the other end is located outside the heat exchange cylinder 21, and the thermometer 28 is convenient for a worker to observe a working condition of the waste heat recovery system, that is, a water temperature in the circulating water cavity 212.
Further, as shown in fig. 5, the first air purification unit 12 includes a first filter screen 121, as shown in fig. 2, the second air purification unit 22 includes a second filter screen 221, the first filter screen 121 and the second filter screen 221 are used for removing impurities from the exhaust gas, the first filter screen 121 and the second filter screen 221 are both provided with a plurality of layers of layered structures, and the layered structures have better purification effects. The mesh diameter of second filter screen 221 is greater than the mesh diameter of first filter screen 121, second filter screen 221 plays supplementary filterable effect, further reduces the impurity content in the high temperature waste gas, and great aperture can reduce the influence to the waste gas circulation simultaneously.
It is conceivable that a detachable collecting box for collecting the foreign substances dropped from the first and second filters 121 and 221 is provided below the first and second filters 121 and 221.
Further, as shown in fig. 5, a heat insulation layer 13 is arranged outside the air inlet pipe body 11 and the first air purifying unit 12, and the heat insulation layer 13 plays a role in heat insulation and heat preservation. It is conceivable that the heat insulating layer 13 is further covered with a protective layer and a waterproof layer, and if the system is disposed in an indoor environment, the waterproof layer may be omitted.
The utility model provides a use method of a ship host waste heat recovery system, the ship host discharges high-temperature waste gas when running, the high-temperature waste gas enters a first gas purification unit 12 through an air inlet pipe body 11, and the first gas purification unit 12 removes partial impurities in the high-temperature waste gas; the high-temperature waste gas enters the heat exchange cylinder 21 through the gas inlet pipe body 11, wherein the high-temperature waste gas firstly enters the filter cavity 211, the second gas purification unit 22 in the filter cavity 211 further removes part of impurities in the high-temperature waste gas, and the high-temperature waste gas after twice purification enters the flow dividing pipe body 23; the heat exchange liquid is guided into the circulating water cavity 212 through the water inlet pipe body 25, the heat exchange liquid adopts low-temperature fresh water, and high-temperature waste gas and the low-temperature fresh water perform heat exchange in the circulating water cavity 212, wherein the high-temperature waste gas firstly transfers heat to the heat conducting member 231, the heat conducting member 231 transfers the heat to the low-temperature fresh water, and the low-temperature fresh water is discharged out of the circulating water cavity 212 through the water discharge pipe body 26 after being heated, so that efficient waste heat recovery is realized.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a marine main engine waste heat recovery system, includes gas recovery mechanism (1) and heat transfer mechanism (2), its characterized in that:
the gas recovery mechanism (1) comprises a gas inlet pipe body (11) and a first gas purification unit (12), wherein the first gas purification unit (12) is communicated with the gas inlet pipe body (11);
the heat exchange mechanism (2) comprises a heat exchange cylinder (21), a second gas purification unit (22), a shunt pipe body (23), an exhaust pipe body (24), a water inlet pipe body (25) and a water discharge pipe body (26); be provided with filter chamber (211) and circulation water cavity (212) in heat transfer cylinder (21), filter chamber (211) are located one side of circulation water cavity (212), second net gas unit (22) set up in filter chamber (211), body (11) set up in the one end of heat transfer cylinder (21), and communicate with second net gas unit (22), the other end and the reposition of redundant personnel body (23) of second net gas unit (22) communicate, the other end and the exhaust pipe body (24) intercommunication of reposition of redundant personnel body (23), body (25) of intaking set up in one side of heat transfer cylinder (21), and communicate with circulation water cavity (212), drainage body (26) set up in the opposite side of heat transfer cylinder (21), and communicate with circulation water cavity (212).
2. The marine host waste heat recovery system of claim 1, wherein: be provided with between filter chamber (211) and circulating water chamber (212) and divide the baffle body (27), at least one side of dividing the baffle body (27) is provided with thermal-insulated plate body (271), be provided with a plurality of through-holes that overlap on dividing the baffle body (27) and thermal-insulated plate body (271), the through-hole communicates with reposition of redundant personnel body (23).
3. The marine host waste heat recovery system of claim 1, wherein: the outer wall of the shunt pipe body (23) is provided with a heat conducting piece (231), and the heat conducting piece (231) is provided with a flow guide groove (232).
4. The marine host waste heat recovery system of claim 3, wherein: the extending direction of the diversion trench (232) is consistent with the water flow direction in the circulating water cavity (212).
5. The marine host waste heat recovery system of claim 1, wherein: the heat exchange mechanism (2) further comprises a thermometer (28), one end of the thermometer (28) is inserted into the circulating water cavity (212), and the other end of the thermometer (28) is located outside the heat exchange cylinder (21).
6. The marine host waste heat recovery system of claim 1, wherein: the first air purification unit (12) comprises a first filter screen (121), the second air purification unit (22) comprises a second filter screen (221), and the first filter screen (121) and the second filter screen (221) are both arranged into a plurality of layers of layered structures.
7. The marine host waste heat recovery system of claim 6, wherein: the mesh diameter of the second filter (221) is larger than that of the first filter (121).
8. The marine host waste heat recovery system of claim 1, wherein: and a heat insulation layer (13) is arranged outside the air inlet pipe body (11) and the first air purification unit (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223210555.8U CN218542371U (en) | 2022-12-01 | 2022-12-01 | Waste heat recovery system for marine main engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223210555.8U CN218542371U (en) | 2022-12-01 | 2022-12-01 | Waste heat recovery system for marine main engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218542371U true CN218542371U (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223210555.8U Active CN218542371U (en) | 2022-12-01 | 2022-12-01 | Waste heat recovery system for marine main engine |
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| Country | Link |
|---|---|
| CN (1) | CN218542371U (en) |
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2022
- 2022-12-01 CN CN202223210555.8U patent/CN218542371U/en active Active
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