CN210196055U - Sea water pump - Google Patents
Sea water pump Download PDFInfo
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- CN210196055U CN210196055U CN201921012520.9U CN201921012520U CN210196055U CN 210196055 U CN210196055 U CN 210196055U CN 201921012520 U CN201921012520 U CN 201921012520U CN 210196055 U CN210196055 U CN 210196055U
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Abstract
The utility model discloses a sea water pump relates to water pump technical field. The seawater pump comprises a pump body and an impeller assembly driven by a power device, wherein the pump body is provided with an installation cavity, a water inlet and a water outlet which are communicated with the installation cavity, the impeller assembly is rotatably arranged in the installation cavity, the pump body is provided with an overflow channel for communicating the water inlet and the water outlet, and an overflow valve is arranged between the overflow channel and the water outlet; the sea water pump further comprises a throttle valve arranged at the water outlet and a first temperature sensor used for detecting the water outlet temperature of the engine circulating cooling system, and the throttle valve and the first temperature sensor are respectively and electrically connected with the engine control unit. The utility model discloses sea water pump can be according to the operating mode of engine adjust outer circulative cooling system's discharge, solves the surplus problem of engine cooling performance.
Description
Technical Field
The utility model relates to a water pump technical field, concretely relates to sea water pump that uses on marine engine.
Background
The cooling system of the existing marine engine is a double-circulation cooling system, and the engine circulation cooling system mainly utilizes processed fresh water to form a closed circulation route to cool a heated part of the engine; the other is an outboard circulation cooling system, which directly utilizes outboard water (seawater or river water) to cool the engine circulation cooling system, and then discharges the outboard water to the outboard.
The sea water pump is an important device in the external circulation cooling system, because the sea water pump is connected with a gear chamber or a front-end gear train of an engine, the water flow of the external circulation cooling system is related to the rotating speed of the engine and does not change along with the load working condition of the engine, the water flow of the external circulation cooling system is not the water flow actually required by the engine, and the cooling performance of the existing engine circulation cooling system can meet the cooling requirement when the engine runs under various working conditions of a maximum power section model, therefore, the engine using the external circulation cooling system has the phenomenon of excessive cooling performance under partial load working conditions or under the low power section model with the same structure, which is mainly reflected in the phenomena that the air inlet temperature of an engine cylinder is low, the water outlet temperature of the engine circulation cooling system is low, and the ignition of the engine is difficult or the combustion is slow due, the power of the engine is further reduced, the corresponding fuel consumption is increased, the emission of harmful gas is greatly increased, the viscosity of lubricating oil in the engine is increased, the lubrication of parts is not facilitated, the abrasion of each part of the engine is aggravated, and the power consumption of the engine is increased.
SUMMERY OF THE UTILITY MODEL
To the above defect that prior art exists, the utility model provides a sea water pump, this sea water pump can be according to the operating mode of engine and adjust outer circulative cooling system's discharge, solve the excessive problem of engine cooling performance.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the seawater pump comprises a pump body and an impeller assembly driven by a power device, wherein the pump body is provided with an installation cavity, a water inlet and a water outlet which are communicated with the installation cavity, the impeller assembly is rotatably arranged in the installation cavity, the pump body is provided with an overflow channel for communicating the water inlet and the water outlet, and an overflow valve is arranged between the overflow channel and the water outlet; the sea water pump further comprises a throttle valve arranged at the water outlet and a first temperature sensor used for detecting the water outlet temperature of the engine circulating cooling system, and the throttle valve and the first temperature sensor are respectively and electrically connected with the engine control unit.
The sea water pump further comprises a second temperature sensor for detecting the air inlet temperature of an engine cylinder, and the second temperature sensor is electrically connected with the engine control unit.
The pump body is provided with a first mounting hole, the first mounting hole is communicated with the water outlet and the overflow channel, and the overflow valve is mounted in the first mounting hole.
The pump body is provided with a second mounting hole, the second mounting hole is communicated with the water inlet and the overflow channel, and a plug screw is arranged in the second mounting hole.
The impeller assembly comprises a mounting shaft and a rubber impeller, the mounting shaft is driven by the power device to rotate and arranged in the mounting cavity, and the rubber impeller is fixedly arranged on the mounting shaft; and an eccentric body for extruding the rubber impeller is arranged in the mounting cavity and is positioned on one side of the water outlet.
The pump body is provided with an end cover, a first rotating bearing is arranged in the mounting cavity, a second rotating bearing is arranged on the inner side of the end cover, one end of the mounting shaft penetrates through the first rotating bearing to be connected with the power device, and the other end of the mounting shaft is fixedly arranged on the second rotating bearing.
The water inlet is provided with a water inlet flange, the water outlet is provided with a water outlet flange, and the throttle valve is arranged on the water outlet flange.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the utility model provides a sea water pump, its first temperature sensor, choke valve and engine control unit constitute a control system, in the use, detect engine cooling system's leaving water temperature and transmit the electric signal for engine control unit through first temperature sensor, engine control unit is according to the aperture of this electric signal control choke valve, if leaving water temperature is greater than the temperature numerical value of settlement, then engine control unit will control the aperture increase of choke valve, the sea water of flowing in by the water inlet of the pump body will directly flow out by the choke valve and cool off engine cooling system; if the outlet water temperature is not more than the set water temperature value, the engine control unit controls the opening degree of the throttle valve to be reduced, in the process of reduction, the pressure of the water outlet is continuously increased, when the pressure value overcomes the elasticity of the overflow valve, the overflow valve is opened, and partial sea water flows into the water inlet by the overflow passageway, and another part sea water is cooled off engine cooling circulation system by the choke valve outflow, the utility model discloses sea water pump adjusts outer cooling circulation system's discharge through the aperture of adjusting the choke valve, makes outer cooling circulation system's discharge and the operating mode phase-match of engine, avoids appearing engine fuel economy poor, the uneven and harmful gas of lubricating property discharges the phenomenon that exceeds standard because of engine cooling property is surplus, has solved the surplus problem of engine cooling property, has guaranteed the normal work of engine, has prolonged the life of engine.
Drawings
Fig. 1 is a schematic structural view of a seawater pump of the present invention;
FIG. 2 is a schematic diagram of FIG. 1, taken apart;
FIG. 3 is a control schematic diagram of the seawater pump of the present invention;
in the figure: 1-a pump body, 11-a mounting cavity, 12-an overflow channel, 13-a water inlet, 14-a water outlet, 15-a first mounting hole, 16-a second mounting hole, 17-a sand cleaning hole, 18-a bowl plug, 2-an overflow valve, 3-a throttle valve, 4-a screw plug, 5-a mounting shaft, 6-a rubber impeller, 7-an eccentric body, 8-an end cover, 9-a first rotating bearing, 10-a second rotating bearing, 19-a locking piece, 20-a water inlet flange, 21-a sealing pad, 22-a locking piece, 23-a water outlet flange, 24-a sealing pad and 25-a locking piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for illustrating the present invention and are not to be construed as limiting the present invention, wherein the arrow direction in fig. 1 represents the flow direction of seawater.
As shown in fig. 1 to 3, the sea water pump comprises a pump body 1 and an impeller assembly driven by a power device (not shown in the figure), wherein the pump body 1 is provided with a mounting cavity 11, a water inlet 13 and a water outlet 14 which are communicated with the mounting cavity 11, the impeller assembly is rotatably arranged in the mounting cavity 11, the pump body 1 is provided with an overflow channel 12 for communicating the water inlet 13 and the water outlet 14, and an overflow valve 2 is arranged between the overflow channel 12 and the water outlet 14; the sea water pump further comprises a throttle valve 3 arranged at the water outlet 14 and a first temperature sensor used for detecting the water outlet temperature of the engine circulating cooling system, and the throttle valve 3 and the first temperature sensor are respectively and electrically connected with the engine control unit. In this embodiment, the sea water pump is connected with the engine gear chamber or the front end wheel train, so power device is the engine, and in practical application, the sea water pump also can adopt motor drive, and this embodiment does not do the restriction to the drive mode of sea water pump.
As shown in fig. 1 to 3 in common, the sea water pump in the present embodiment further includes a second temperature sensor for detecting an intake air temperature of the engine cylinder, and the second temperature sensor is electrically connected to the engine control unit. The temperature control device is characterized in that a first temperature sensor is arranged and used for detecting the outlet water temperature of the engine circulating cooling system, and a second temperature sensor is arranged and used for detecting the inlet air temperature of an engine cylinder.
As shown in fig. 1 and fig. 2 together, the impeller assembly in this embodiment includes a mounting shaft 5 and a rubber impeller 6, the mounting shaft 5 is driven by a power device to rotate and is disposed in a mounting cavity 11, and the rubber impeller 6 is fixedly disposed on the mounting shaft 5; an eccentric body 7 for extruding the rubber impeller 6 is arranged in the mounting cavity 11, and the eccentric body 7 is positioned on one side of the water outlet 14. In the process of rotating the rubber impeller 6, the eccentric body 7 extrudes the rubber impeller 6 to ensure that the pressure at the water outlet 14 is less than the pressure at the water inlet 13, thereby sucking the seawater from the water inlet 13 to the water outlet 14 and circulating the seawater.
As shown in fig. 1 and fig. 2, the pump body 1 in the present embodiment is a casting, the sidewall of the overflow channel 12 is provided with a sand cleaning hole 17, and the sand cleaning hole 17 is blocked by a bowl-shaped plug 18; the pump body 1 is provided with an end cover 8, and the end cover 8 is fixedly arranged on the pump body 1 through a locking piece 19; a first rotating bearing 9 is arranged in the mounting cavity 11, a second rotating bearing 10 is arranged on the inner side of the end cover 8, one end of the mounting shaft 5 penetrates through the first rotating bearing 9 to be connected with a power device, and the other end of the mounting shaft 5 is fixedly arranged on the second rotating bearing 10.
As shown in fig. 1 and fig. 2 together, in the present embodiment, the pump body 1 is provided with a first mounting hole 15, the first mounting hole 15 is communicated with the water outlet 14 and the overflow channel 12, and the overflow valve 2 is mounted in the first mounting hole 15; a second mounting hole 16 is formed in the pump body 1, the second mounting hole 16 is communicated with the water inlet 13 and the overflow channel 12, and a screw plug 4 is arranged in the second mounting hole 16. In this embodiment, it is preferable that the first mounting hole 15 and the second mounting hole 16 have the same structure and size, when the seawater pump needs to run in the reverse direction, the overflow valve 2 and the plug screw 4 can be exchanged, that is, the overflow valve 2 is mounted to the second mounting hole 16, the plug screw 4 is used to plug the first mounting hole 15, and the eccentric body 7 is mounted to one side of the water inlet 13, at this time, the water inlet 13 is changed into a water outlet, the water outlet 14 is changed into a water inlet, and the application range of the seawater pump is expanded.
As shown in fig. 1 and fig. 2, in this embodiment, the water inlet 13 is provided with a water inlet flange 20, a sealing gasket 21 is arranged between the water inlet 13 and the water inlet flange 20, and the three are fixedly connected through a locking member 22; the water outlet 14 is provided with a water outlet flange 23, a sealing gasket 24 is arranged between the water outlet 14 and the water outlet flange 23, the three are fixedly connected through a locking piece 25, and the throttle valve 2 is arranged on the water outlet flange 23.
When the water cooling device is used, the first temperature sensor is used for detecting the outlet water temperature of the engine circulating cooling system and transmitting an electric signal to the engine control unit, the second temperature sensor is used for detecting the inlet air temperature of an engine cylinder and transmitting an electric signal to the engine control unit, the engine control unit controls the opening of the throttle valve 3 according to the two electric signals, if the outlet water temperature is greater than a set water temperature value and the inlet air temperature is greater than a set air temperature value, the engine control unit controls the opening of the throttle valve 3 to be increased, and seawater flowing in from the water inlet 13 of the pump body 1 directly flows out from the throttle valve 3 to cool the engine circulating cooling system; if the outlet water temperature is not more than the set water temperature value and the inlet air temperature is not more than the set air temperature value, the engine control unit controls the opening degree of the throttle valve 3 to be reduced, the pressure of the water outlet 14 is continuously increased in the reducing process, when the pressure value overcomes the elastic force of the overflow valve 2, the overflow valve 2 is opened, part of seawater flows into the water inlet 13 through the overflow channel 12, and the other part of seawater flows out of the throttle valve 3 to cool the engine circulating cooling system.
According to the working process, the utility model discloses sea water pump adjusts outer circulative cooling system's discharge through the aperture of adjusting choke valve 3, makes outer circulative cooling system's discharge and the operating mode phase-match of engine, has avoided appearing engine fuel economy difference, the uneven and harmful gas of lubricating property discharge phenomenon that exceeds standard because of engine cooling performance is surplus, has guaranteed the normal work of engine, has prolonged the life of engine.
The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without the labor of creation from the above conception, which falls within the protection scope of the present invention.
Claims (7)
1. The sea water pump comprises a pump body and an impeller assembly driven by a power device, wherein the pump body is provided with an installation cavity, a water inlet and a water outlet which are communicated with the installation cavity, and the impeller assembly is rotatably arranged in the installation cavity;
the sea water pump further comprises a throttle valve arranged at the water outlet and a first temperature sensor used for detecting the water outlet temperature of the engine circulating cooling system, and the throttle valve and the first temperature sensor are respectively and electrically connected with the engine control unit.
2. The seawater pump of claim 1, further comprising a second temperature sensor for detecting an intake air temperature of an engine cylinder, the second temperature sensor being electrically connected with the engine control unit.
3. The seawater pump of claim 1, wherein the pump body is provided with a first mounting hole, the first mounting hole is communicated with the water outlet and the overflow passage, and the overflow valve is mounted in the first mounting hole.
4. The seawater pump of claim 3, wherein the pump body is provided with a second mounting hole, the second mounting hole is communicated with the water inlet and the overflow channel, and a plug screw is arranged in the second mounting hole.
5. The seawater pump of any one of claims 1 to 4, wherein the impeller assembly comprises a mounting shaft and a rubber impeller, the mounting shaft is rotationally arranged in the mounting cavity by the power device, and the rubber impeller is fixedly arranged on the mounting shaft; and an eccentric body for extruding the rubber impeller is arranged in the mounting cavity and is positioned on one side of the water outlet.
6. The seawater pump of claim 5, wherein the pump body is provided with an end cover, a first rotating bearing is arranged in the mounting cavity, a second rotating bearing is arranged on the inner side of the end cover, one end of the mounting shaft penetrates through the first rotating bearing to be connected with the power device, and the other end of the mounting shaft is fixedly arranged on the second rotating bearing.
7. A seawater pump as claimed in claim 6 wherein the water inlet is provided with a water inlet flange, the water outlet is provided with a water outlet flange, and the throttle valve is provided on the water outlet flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921012520.9U CN210196055U (en) | 2019-06-28 | 2019-06-28 | Sea water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921012520.9U CN210196055U (en) | 2019-06-28 | 2019-06-28 | Sea water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210196055U true CN210196055U (en) | 2020-03-27 |
Family
ID=69868744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921012520.9U Active CN210196055U (en) | 2019-06-28 | 2019-06-28 | Sea water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210196055U (en) |
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2019
- 2019-06-28 CN CN201921012520.9U patent/CN210196055U/en active Active
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