CN210135261U - Speed control protection electromagnetic valve for marine diesel engine - Google Patents

Abstract

The utility model discloses a speed control protection solenoid valve for marine diesel engine, the speed control protection solenoid valve includes the valve body that has the valve pocket, cup joint the oil inlet nozzle that communicates with diesel engine oil tank and the oil outlet nozzle that communicates with the diesel engine on the valve body, the oil inlet nozzle forms the oil outlet passageway that is left and right direction distribution through valve pocket and oil outlet nozzle intercommunication each other, the valve pocket top still is equipped with the solenoid case subassembly, the case of solenoid case subassembly stretches out and draws back from top to bottom in the valve pocket under the electromagnetic force drive and is used for controlling the bore of oil outlet passageway; the central line of the oil outlet nozzle is not parallel to the central line of the oil inlet nozzle; the utility model discloses a special structural design has realized the quick effective control to diesel engine oil-out speed, and then has realized the quick effective control to boats and ships speed of traveling, the utility model discloses the work efficiency of marine diesel engine has obviously been improved.

Description

Speed control protection electromagnetic valve for marine diesel engine

Technical Field

The utility model belongs to the shipbuilding field, concretely relates to speed control protection solenoid valve for marine diesel engine.

Background

The marine diesel engine is a key power device for determining the running speed of a ship as a core power component of the ship. People usually adopt an overspeed protection electromagnetic valve to carry out deceleration control on the oil outlet speed of a marine diesel engine, and the working mode of the overspeed protection electromagnetic valve is mainly that fuel oil from a fuel oil pipe is blown off to the diesel engine to realize the rapid stop of the diesel engine. However, the overspeed protection solenoid valve of the existing structure directly and rapidly stops the diesel engine when detecting that the driving speed of the ship is too high, and the structural design of the overspeed protection solenoid valve cannot effectively control the driving speed of the ship. The applicant has decided to improve the above technical problem on the basis of years of experience in the field of shipbuilding.

Disclosure of Invention

In view of this, the utility model aims at providing a speed control protection solenoid valve for marine diesel engine through the particular structure design, has realized the quick effective control to diesel engine oil-out speed, and then has realized the quick effective control to boats and ships speed of traveling, the utility model discloses the work efficiency of marine diesel engine has obviously been improved.

The utility model adopts the technical scheme as follows:

a speed control protection electromagnetic valve for a ship diesel engine comprises a valve body with a valve cavity, wherein an oil inlet nozzle communicated with an oil tank of the diesel engine and an oil outlet nozzle communicated with the diesel engine are sleeved on the valve body, the oil inlet nozzle is communicated with the oil outlet nozzle through the valve cavity to form an oil outlet channel distributed in the left-right direction, an electromagnetic valve core assembly is further arranged above the valve cavity, and a valve core of the electromagnetic valve core assembly stretches up and down in the valve cavity under the driving of electromagnetic force to control the caliber of the oil outlet channel; the central line of the oil outlet nozzle is not parallel to the central line of the oil inlet nozzle.

Preferably, a sealing ring is arranged at the joint between the valve core and the valve body.

Preferably, be equipped with on the valve body and be used for monitoring the oil pressure monitoring table of valve intracavity oil pressure, the oil pressure monitoring table with solenoid valve core subassembly is automatically controlled to be connected.

Preferably, the solenoid valve core assembly comprises an electrically controlled solenoid coil and a valve core magnetically coupled with the solenoid coil, and the solenoid coil is mounted in a solenoid valve housing.

Preferably, a muffler for absorbing the electromagnetic attraction noise is installed in the solenoid valve housing.

The utility model provides a form the passageway of producing oil by the oil inlet nozzle that communicates each other, valve pocket and play oil nozzle, then cooperate with the case of solenoid case subassembly through the valve pocket top and be connected, the case through adopting solenoid case subassembly control carries out the displacement in the direction about the valve pocket, realize carrying out quick effective regulation and control to the oil speed of diesel engine passageway of producing oil, and then to the quick effective control of boats and ships speed of traveling, the work efficiency of boats and ships diesel engine has obviously been improved, avoided prior art when finding the diesel engine speed too fast directly to carry out the operation of quick shut down to the diesel engine, this is unfavorable for the work efficiency of diesel engine;

the utility model discloses still further preferably provide a solenoid valve body for marine diesel engine speed control protection, set up the valve pocket that is formed by the oil inlet valve chamber section, case valve chamber section and the play valve chamber section that communicate in proper order simultaneously, wherein, oil inlet valve chamber section is parallel with play valve chamber section, and perpendicular with case valve chamber section, this ingenious valve pocket structure adopts integrative casting machine-shaping, processing is quick convenient, easily shaping, and realize carrying out quick effective regulation control to the oil speed of diesel engine oil outlet passageway after the case cooperation connection with solenoid valve oil inlet nozzle, solenoid valve oil nozzle and solenoid valve core subassembly;

the utility model discloses still further preferably provide a solenoid valve seal structure for marine diesel engine speed control protection, internal seal stator ring section and external seal stator ring section shape have been set up specially in the sealing washer in particular, set up internal seal stator ring section along the slope of sealing washer internal orifice direction, external seal stator ring section sets up along the slope of sealing washer external orifice direction, internal seal stator ring section is used for effectively avoiding being located the diesel oil of valve pocket and is taken out and lead to revealing by the case of displacement from top to bottom, and external seal stator ring can effectively avoid being located the outside dust of valve pocket or rivers or other debris entering valve pocket simultaneously again, cause the pollution to diesel oil, the mounting structure simple structure, therefore, the carrier wave prepaid electric energy meter is low in cost, very easily carry out the scale popularization and application in the actual manufacturing.

Drawings

FIG. 1 is a schematic structural view of a speed control protection solenoid valve for a marine diesel engine according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic structural view of a valve body of a solenoid valve according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of FIG. 4;

fig. 6 is a sectional view of a lower seal ring according to an embodiment of the present invention.

Detailed Description

The embodiment of the utility model discloses a speed control protection solenoid valve for marine diesel engine, speed control protection solenoid valve is including the valve body that has the valve pocket, cup jointed on the valve body with the oil inlet nozzle that communicates with diesel engine oil tank and the oil outlet nozzle that communicates with the diesel engine, the oil inlet nozzle forms the oil outlet passageway that is left and right direction distribution through valve pocket and oil outlet nozzle intercommunication each other, the valve pocket top still is equipped with the electromagnetic valve core subassembly, the case of electromagnetic valve core subassembly stretches out and draws back from top to bottom in the valve pocket under the electromagnetic force drive and is used for controlling the bore of oil outlet passageway; the central line of the oil outlet nozzle is not parallel to the central line of the oil inlet nozzle.

The embodiment of the utility model provides an oil inlet nozzle by mutual intercommunication, valve pocket and play oil nozzle form the passageway of producing oil, then the case cooperation through valve pocket top and solenoid case subassembly is connected, the case through adopting solenoid case subassembly control carries out the displacement in the direction about the valve pocket, the realization is carried out quick effective regulation and control to the speed of producing oil of diesel engine passageway of producing oil, and then to the quick effective control of boats and ships speed of traveling, the work efficiency of boats and ships diesel engine has obviously been improved, the direct operation of directly carrying out quick shut down to the diesel engine when discovery diesel engine speed is too fast has been avoided to prior art, this is unfavorable for the work efficiency of diesel engine.

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, a speed control protection solenoid valve 100 for a marine diesel engine is shown, the speed control protection solenoid valve 100 includes a valve body 110 having a valve cavity 120, an oil inlet nozzle 130 communicated with an oil tank of the diesel engine and an oil outlet nozzle 140 communicated with the diesel engine are sleeved on the valve body 110, the oil inlet nozzle 130 is communicated with the oil outlet nozzle 140 through the valve cavity 120 to form an oil outlet channel 150 distributed in the left-right direction, an electromagnetic valve core assembly 160 is further disposed above the valve cavity 120, and a valve core 161 of the electromagnetic valve core assembly 160 extends up and down in the valve cavity 120 under the driving of electromagnetic force to control the aperture of the oil outlet channel 150; the center line of the delivery nozzle 140 is not parallel to the center line of the oil delivery nozzle 130;

preferably, in the present embodiment, the solenoid valve core assembly 160 includes an electrically-controlled solenoid (not shown) and a valve core 161 magnetically coupled with the solenoid, the solenoid is installed in a solenoid valve housing 162, and the solenoid may adopt a prior art solenoid, which is not particularly limited in the present embodiment;

preferably, in the present embodiment, an oil pressure monitoring meter 170 for monitoring oil pressure in the valve cavity is disposed on the valve body 110, and the oil pressure monitoring meter 170 is electrically connected to the solenoid valve core assembly 160; a muffler (not shown) for absorbing electromagnetic suction noise is installed in the solenoid valve housing 162;

preferably, please further refer to fig. 4 and fig. 5, this embodiment further provides a solenoid valve body 110 for speed control protection of a marine diesel engine, the valve body 110 is formed by integral casting, and the valve body 110 is provided with a valve body oil inlet threaded port 111 in sleeve fit with the oil inlet nozzle 130 and a valve body oil outlet threaded port 112 in sleeve fit with the oil outlet nozzle 140, the valve body oil inlet threaded port 111 is communicated with the valve body oil outlet threaded port 112 through the valve cavity 120, and simultaneously a center line of the valve body oil outlet threaded port 112 is not parallel to a center line of the valve body oil inlet threaded port 111; a valve core port 113 in sleeve fit with the valve core 161 is arranged above the valve body 110, the valve core port 113 is communicated with the valve cavity 120, the valve cavity 120 comprises an oil inlet valve cavity section 120a, a valve core valve cavity section 120b and an oil outlet valve cavity section 120c which are sequentially communicated, and the oil inlet valve cavity section 120a is parallel to the oil outlet valve cavity section 120c and is vertical to the valve core valve cavity section 120 b; a first mounting step 114 and a second mounting step 115 are respectively arranged on opposite corners of the valve body 110, and mounting holes 116 for mounting and fixing are respectively arranged on the first mounting step 114 and the second mounting step 115;

preferably, in the present embodiment, the valve body 110 is provided with a thread groove 117 fixedly connected with the solenoid valve core assembly 160, and the thread grooves 117 are uniformly distributed at intervals along the periphery of the valve core port 113;

preferably, as further shown in fig. 6, the present embodiment further proposes a sealing structure of an electromagnetic valve for speed control protection of a marine diesel engine, the sealing structure includes a sealing ring 180 located at a connection between a spool 161 and a valve body 110, and preferably, in the present embodiment, an inner circumference of a spool port 113 is provided with a sealing step groove 113a in sealing fit with the sealing ring 180, and the sealing ring 180 is installed in the sealing step groove 113 a;

the sealing ring 180 is formed by integral injection molding and comprises a sealing ring outer opening 181 relatively close to the outside and a sealing ring inner opening 182 relatively close to the valve body 110, an inner sealing guide vane ring section 183 and an outer sealing guide vane ring section 184 which are connected into a whole are arranged on the inner wall of the sealing ring 180 between the sealing ring inner opening 182 and the sealing ring outer opening 181, the inner sealing guide vane ring section 183 is obliquely arranged along the direction of the sealing ring inner opening 182, and the outer sealing guide vane ring section 184 is obliquely arranged along the direction of the sealing ring outer opening 181;

preferably, in the present embodiment, a metal reinforcing insert ring 185 is embedded in the outer circumference of the sealing ring 180;

preferably, in the present embodiment, the inner seal guide vane ring segment 183 includes a plurality of integrally connected inner seal guide vane ring units, specifically, in the present embodiment, the inner seal guide vane ring segment 183 includes five integrally connected inner seal guide vane ring units, which are respectively a first inner seal guide vane ring unit 183a, a second inner seal guide vane ring unit 183b, a third inner seal guide vane ring unit 183c, a fourth inner seal guide vane ring unit 183b, and a fifth inner seal guide vane ring unit 183 e; wherein, the inclination angle of the inner sealing guide vane ring unit relatively close to the outer opening 181 of the sealing ring is larger than that of the inner sealing guide vane ring unit relatively close to the inner opening of the sealing ring;

preferably, in the present embodiment, outer seal vane ring segment 184 includes 1 outer seal vane ring unit.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The speed control protection electromagnetic valve for the ship diesel engine is characterized by comprising a valve body with a valve cavity, wherein an oil inlet nozzle communicated with an oil tank of the diesel engine and an oil outlet nozzle communicated with the diesel engine are sleeved on the valve body, the oil inlet nozzle is communicated with the oil outlet nozzle through the valve cavity to form an oil outlet channel distributed in the left-right direction, an electromagnetic valve core assembly is further arranged above the valve cavity, and a valve core of the electromagnetic valve core assembly stretches up and down in the valve cavity under the driving of electromagnetic force to control the caliber of the oil outlet channel; the central line of the oil outlet nozzle is not parallel to the central line of the oil inlet nozzle.

2. The speed control protection solenoid valve for marine diesel engines according to claim 1, wherein a seal ring is provided at a junction between the spool and the valve body.

3. The speed control protection solenoid valve for the marine diesel engine according to claim 1, wherein an oil pressure monitoring gauge for monitoring the oil pressure in the valve cavity is provided on the valve body, and the oil pressure monitoring gauge is electrically connected to the solenoid valve core assembly.

4. The speed control protection solenoid valve for marine diesel engines of claim 1 wherein said solenoid spool assembly includes an electrically connected solenoid coil and a spool magnetically coupled to said solenoid coil, said solenoid coil being mounted within a solenoid valve housing.

5. The speed control protection solenoid valve for a marine diesel engine according to claim 1, wherein a muffler for absorbing the electromagnetic attracting noise is installed in the solenoid valve housing.

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