CN212654513U - Cooling water system for marine main engine - Google Patents
Cooling water system for marine main engine Download PDFInfo
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- CN212654513U CN212654513U CN202021257099.0U CN202021257099U CN212654513U CN 212654513 U CN212654513 U CN 212654513U CN 202021257099 U CN202021257099 U CN 202021257099U CN 212654513 U CN212654513 U CN 212654513U
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Abstract
The utility model discloses a marine main engine cooling water system, including heat exchanger and pulse belt cleaning device, heat exchanger's one end is equipped with fresh water inlet and sea water export respectively, heat exchanger's the other end is equipped with fresh water export and sea water inlet respectively, pulse belt cleaning device includes pulse injection equipment, air compression equipment and high pressure water pump, the mouth that draws water of high pressure water pump leads to pipe and extends to the boats and ships bottom and feed through the sea water, the delivery port of high pressure water pump leads to pipe intercommunication air compression equipment, the export of air compression equipment leads to pipe connects the entry of pulse injection equipment, the jet of pulse injection equipment leads to pipe intercommunication sea water entry; the pulse cleaning device is used for cleaning the seawater pipeline of the heat exchanger, so that the heat exchange effect reduction of the heat exchanger caused by scaling in the seawater pipeline of the heat exchanger is avoided.
Description
Technical Field
The utility model relates to a boats and ships host computer cooling technology field, especially boats and ships host computer cooling water system.
Background
In order to maintain the normal and stable working performance of the parts of the diesel engine and other auxiliary equipment subjected to high temperature and friction, the parts must be cooled, the cooling system is used for sending a cooling medium to the heated parts and taking away the redundant heat of the heated parts, and the ship cooling system is one of the important components of a ship power system and is roughly divided into three types: open cooling systems, semi-enclosed cooling systems, and central cooling systems.
The open cooling system is characterized in that outboard seawater is utilized to directly cool the main engine and the auxiliary equipment, the seawater pump sucks the outboard water into a system pipeline, after heat exchange is carried out through equipment such as a heat exchanger, a main engine cylinder sleeve, a lubricating oil cooler and the like, the heat is discharged out of a ship through a sea outlet valve, an open type cooling system is the earliest cooling mode applied to ships, the advantages are rich source of cooling water, less equipment and pipelines to be installed, convenient maintenance and management, obvious defects, as the cooling medium directly adopts the outboard water and has poor water quality, when the cooling medium is used for absorbing the water quality, often accompanied by a large amount of solids or floaters in the seawater, which are sucked into the heat exchanger at the same time, after a long period of use, these solids or floats are liable to condense to form fouling on the inner walls of the tubes of the heat exchanger, causing a reduction in the heat exchange efficiency of the heat exchanger and even clogging of the heat exchanger.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the cooling water system for the marine main engine is provided, and the problem that dirt is easily formed on the inner wall of a pipeline of a heat exchanger is solved.
In order to achieve the above purpose, the utility model adopts the technical proposal that: the cooling water system for the ship main engine comprises a heat exchanger and a pulse cleaning device, wherein one end of the heat exchanger is respectively provided with a fresh water inlet and a seawater outlet, the other end of the heat exchanger is respectively provided with a fresh water outlet and a seawater inlet, the fresh water outlet is connected with a water tank through a water pipe, the bottom of the water tank is connected with a fresh water pump through a water pipe, the seawater inlet is connected with a seawater pump through a water pipe, a water pumping port of the seawater pump extends to the bottom of the ship through a water pipe and is communicated with seawater, and the seawater outlet is connected to the outboard of; the pulse cleaning device comprises pulse injection equipment, air compression equipment and a high-pressure water pump, a water pumping port of the high-pressure water pump extends to the bottom of a ship through a water pipe and is communicated with seawater, a water outlet of the high-pressure water pump is communicated with the air compression equipment through a water pipe, an outlet of the air compression equipment is connected with an inlet of the pulse injection equipment through a water pipe, and a jet port of the pulse injection equipment is communicated with the seawater inlet through a water pipe.
Furthermore, a first valve is arranged in a water pipe between the pulse jet equipment and the seawater inlet, and a second valve is arranged in a water pipe between the seawater inlet and the seawater pump.
Further, the axis of the water pipe between the pulse jet device and the seawater inlet coincides with the axis of the seawater inlet.
Further, the air compression equipment includes air compressor and energy storage case, the upper end of energy storage case is equipped with the compressed air entry, the lateral wall of energy storage case is equipped with high pressure water inlet, the lower extreme of energy storage case is equipped with the gas-liquid mixture export, air compressor's gas vent is connected the compressed air entry, the delivery port of high pressure water pump is connected high pressure water inlet, the entry linkage of pulse injection equipment the gas-liquid mixture export.
Furthermore, a water pipe connected with the water outlet of the seawater pump and a water pipe connected with the water pumping port of the high-pressure water pump are respectively provided with a filtering device. The filter equipment can filter the large-particle substances in the seawater, and the large-particle substances are prevented from entering the water pipe to block the water pipe.
Furthermore, the filter device comprises a filter screen and a joint, wherein one end of the joint is rotatably connected with the water pipe, and the filter screen is in a spherical shape and is fixed at the other end of the joint. Connect the rotation and connect the water pipe, can rotate along with rivers to the change of the effort direction of joint and filter screen to the large granule material that will paste on the filter screen rotates another position, when large granule material rotated can't paste on the filter screen on, will be washed away along with rivers, avoid large granule material to paste on the filter screen for a long time and block up the filter screen.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a boats and ships host computer cooling water system's heat exchanger is connected with pulse belt cleaning device, when boats and ships driving system stopped, uses pulse belt cleaning device to wash heat exchanger's sea water pipeline, avoids the interior scale deposit of heat exchanger's sea water pipeline to lead to heat exchanger's heat exchange effect to reduce. Pulse belt cleaning device includes pulse injection equipment, air compression equipment and high pressure water pump, through air compression equipment with gas compression, let in the high pressure water that high pressure water pump came out, form the gas-liquid mixture body, be connected with pulse injection equipment again, let in the sea water pipeline of heat exchanger with the gas-liquid mixture body through pulse injection equipment, utilize the cavitation principle and the water hammer phenomenon that the gas water pulse in-process produced to strike and vibrate the pipe inner wall, the realization is fast with dirt on the pipe wall and the deposit in the pipe wash get off and discharge outside the heat exchanger, the realization of working repeatedly realizes the cleaning purpose.
Drawings
FIG. 1 is a schematic structural diagram of a cooling water system for a marine main engine according to the present invention;
the system comprises a heat exchanger 1, a fresh water inlet 2, a seawater outlet 3, a fresh water outlet 4, a seawater inlet 5, a water tank 6, a fresh water pump 7, a seawater pump 8, a pulse injection device 9, an air compression device 10, a high-pressure water pump 11, an air compressor 12, an energy storage tank 13, a joint 14, a filter screen 15, a first valve 16 and a second valve 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a cooling water system of a marine main engine comprises a heat exchanger 1 and a pulse cleaning device, wherein one end of the heat exchanger 1 is respectively provided with a fresh water inlet 2 and a seawater outlet 3, the other end of the heat exchanger 1 is respectively provided with a fresh water outlet 4 and a seawater inlet 5, the fresh water inlet 2 is respectively communicated with a cooling water outlet of the main engine, a cooling water outlet of an auxiliary engine and a cooling water outlet of a diesel generator, cooling water flows into the heat exchanger 1 through the fresh water inlet 2 after coming out of the main engine, the auxiliary engine and the diesel generator of the marine, the fresh water outlet 4 is connected with a water tank 6 through a water pipe, the bottom of the water tank 6 is connected with a fresh water pump 7 through a water pipe, a water outlet of the fresh water pump 7 is respectively connected with the cooling water inlet of the main engine, the cooling, and then the fresh water pump 7 is used for re-feeding the fresh water into the main engine, the auxiliary engine and the diesel engine of the ship to cool the ship, the seawater inlet 5 is connected with a seawater pump 8 through a water pipe, the water outlet of the seawater pump 8 extends to the bottom of the ship through a water pipe and is communicated with seawater, and the seawater outlet 3 is connected to the outboard of the ship through a water pipe. After cooling water in the main engine, the auxiliary engine and the diesel generator respectively cools the main engine, the auxiliary engine and the diesel generator, the temperature is increased, then the cooling water enters the heat exchanger 1 from the fresh water inlet 2 to be cooled and then returns to the water tank 6, and then the cooling water is supplied to the main engine, the auxiliary engine and the diesel generator by the fresh water pump 7 to cool the main engine, the auxiliary engine and the diesel generator for recycling. The seawater pump 8 supplies cold seawater from the seawater inlet 5 into the heat exchanger 1, takes away heat of the heat exchanger 1, cools the fresh water in the heat exchanger 1, and discharges the fresh water from the seawater outlet 3 back to the sea.
The pulse cleaning device comprises a pulse spraying device 9, an air compression device 10 and a high-pressure water pump 11, a water pumping port of the high-pressure water pump 11 extends to the bottom of a ship through a water pipe and is communicated with seawater, a water outlet of the high-pressure water pump 11 is communicated with the air compression device 10 through a water pipe, an outlet of the air compression device 10 is connected with an inlet of the pulse spraying device 9 through a water pipe, a spraying port of the pulse spraying device 9 is communicated with a seawater inlet 5 through a water pipe, and the axis of the water pipe between the pulse spraying device 9 and the seawater inlet 5 coincides with the axis of the seawater inlet 5, so that gas and liquid sprayed out of the pulse spraying device 9 can straightly. A first valve 16 is arranged in a water pipe between the pulse jet equipment 9 and the seawater inlet 5, and a second valve 17 is arranged in a water pipe between the seawater inlet 5 and the seawater pump 8. The pulse injection device 9 introduces a gas-liquid mixture made by the air compression device 10 and the high-pressure water pump 11 into a seawater pipeline of the heat exchanger 1, and utilizes the cavitation principle and the water hammer phenomenon generated in the gas-water pulse process to impact and vibrate the inner wall of the pipe, so that dirt on the pipe wall and deposits in the pipe are quickly cleaned and discharged out of the heat exchanger 1.
The air compression equipment 10 comprises an air compressor 12 and an energy storage box 13, a compressed air inlet is formed in the upper end of the energy storage box 13, a high-pressure water inlet is formed in the side wall of the energy storage box 13, a gas-liquid mixture outlet is formed in the lower end of the energy storage box 13, an air outlet of the air compressor 12 is connected with the compressed air inlet, a water outlet of a high-pressure water pump 11 is connected with the high-pressure water inlet, and an inlet of the pulse injection equipment 9 is connected with the gas. The air compression equipment 10 compresses gas and leads the gas into the energy storage tank 13, and then leads high-pressure water from the high-pressure water pump 11 into the energy storage tank 13, so that a gas-liquid mixture is formed in the energy storage tank 13.
The water pipe connected with the water outlet of the seawater pump 8 and the water pipe connected with the water pumping port of the high-pressure water pump 11 are respectively provided with a filtering device, the filtering device comprises a filtering net 15 and a joint 14, two fan blades used for flow blocking are arranged on the outer wall of the joint 14, one end of the joint 14 is rotatably connected with the water pipe, and the filtering net 15 surrounds a sphere and is fixed at the other end of the joint 14. The connector 14 rotates and connects the water pipe, can rotate along with rivers to the change of the effort direction of connector 14 and filter screen 15 to will paste the large granule material on filter screen 15 and rotate another position, rotate when the large granule material can't paste when tightly on filter screen 15, will be washed away along with rivers, avoid the large granule material to paste on filter screen 15 for a long time and block up filter screen 15.
The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.
Claims (6)
1. Marine main engine cooling water system, its characterized in that: the pulse cleaning device comprises a heat exchanger and a pulse cleaning device, wherein one end of the heat exchanger is respectively provided with a fresh water inlet and a seawater outlet, the other end of the heat exchanger is respectively provided with a fresh water outlet and a seawater inlet, the fresh water outlet is connected with a water tank through a water pipe, the bottom of the water tank is connected with a fresh water pump through a water pipe, the seawater inlet is connected with a seawater pump through a water pipe, a water pumping port of the seawater pump extends to the bottom of a ship through a water pipe and is communicated with seawater, and the seawater outlet is connected to the outboard of; the pulse cleaning device comprises pulse injection equipment, air compression equipment and a high-pressure water pump, a water pumping port of the high-pressure water pump extends to the bottom of a ship through a water pipe and is communicated with seawater, a water outlet of the high-pressure water pump is communicated with the air compression equipment through a water pipe, an outlet of the air compression equipment is connected with an inlet of the pulse injection equipment through a water pipe, and a jet port of the pulse injection equipment is communicated with the seawater inlet through a water pipe.
2. The marine main engine cooling water system of claim 1, wherein: a first valve is arranged in a water pipe between the pulse jet equipment and the seawater inlet, and a second valve is arranged in a water pipe between the seawater inlet and the seawater pump.
3. The marine main engine cooling water system of claim 1, wherein: the axis of the water pipe between the pulse jet equipment and the seawater inlet is coincident with the axis of the seawater inlet.
4. The marine main engine cooling water system of claim 1, wherein: the air compression equipment comprises an air compressor and an energy storage box, a compressed air inlet is formed in the upper end of the energy storage box, a high-pressure water inlet is formed in the side wall of the energy storage box, a gas-liquid mixture outlet is formed in the lower end of the energy storage box, an exhaust port of the air compressor is connected with the compressed air inlet, a water outlet of the high-pressure water pump is connected with the high-pressure water inlet, and an inlet of the pulse injection equipment is connected with the gas-liquid mixture outlet.
5. The marine main engine cooling water system of claim 1, wherein: and the water pipe connected with the water outlet of the seawater pump and the water pipe connected with the water pumping port of the high-pressure water pump are respectively provided with a filtering device.
6. The marine main engine cooling water system of claim 5, wherein: the filter device comprises a filter screen and a joint, wherein one end of the joint is rotatably connected with the water pipe, and the filter screen surrounds a sphere and is fixed at the other end of the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021257099.0U CN212654513U (en) | 2020-06-30 | 2020-06-30 | Cooling water system for marine main engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021257099.0U CN212654513U (en) | 2020-06-30 | 2020-06-30 | Cooling water system for marine main engine |
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| CN212654513U true CN212654513U (en) | 2021-03-05 |
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| CN202021257099.0U Active CN212654513U (en) | 2020-06-30 | 2020-06-30 | Cooling water system for marine main engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113492961A (en) * | 2021-06-25 | 2021-10-12 | 南京公诚节能新材料研究院有限公司 | Ship outboard conformal cooler made of catalytic material and ship cooling system |
-
2020
- 2020-06-30 CN CN202021257099.0U patent/CN212654513U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113492961A (en) * | 2021-06-25 | 2021-10-12 | 南京公诚节能新材料研究院有限公司 | Ship outboard conformal cooler made of catalytic material and ship cooling system |
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