CN212691463U - Safety device for oil filling nozzle of fan and motor equipment of nuclear power station - Google Patents
Safety device for oil filling nozzle of fan and motor equipment of nuclear power station Download PDFInfo
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- CN212691463U CN212691463U CN202020903599.0U CN202020903599U CN212691463U CN 212691463 U CN212691463 U CN 212691463U CN 202020903599 U CN202020903599 U CN 202020903599U CN 212691463 U CN212691463 U CN 212691463U
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Abstract
The utility model discloses a safety device for nuclear power station fan and electrical equipment oil filler, including integrated into one piece's cylinder portion and hexagonal cylinder portion, cylinder portion's axis and hexagonal cylinder portion's axis coincidence, cylinder portion include connecting end portion and screw thread portion, and a plurality of through-holes have been seted up to connecting end portion's upper surface, and screw thread portion inside cavity and outside are equipped with the external screw thread, and hexagonal cylinder portion's inner face is equipped with the internal thread, and cylinder portion passes through external thread connection in bearing frame, and hexagonal cylinder portion passes through internal thread connection in oil filler. The utility model has simple design and easy installation, and can be widely applied to the oil filling nozzle of the fan and the motor; in the process of operating the fan and the motor to refuel, the abnormality of the fan and the motor refueling nozzle can be effectively prevented, namely, the refueling nozzle ball enters the bearing chamber to cause the fan and the motor equipment to be forcedly disassembled for maintenance or cause the equipment damage event caused by the falling ball foreign matter after the fan and the motor equipment operate, and the reliability of the equipment is improved.
Description
Technical Field
The utility model relates to a nuclear power station overhauls instrument technical field, more particularly, relates to a safety device that is used for nuclear power station fan and electrical equipment fuel filler neck.
Background
A fan of a nuclear power station is a machine for conveying gas, and is equipment for converting mechanical energy into gas potential energy or kinetic energy. The most rotating equipment used in the nuclear power station is a fan which provides air conveying power for ventilation and air conditioning systems of various plants and various working areas of the nuclear power station. The number 1-6 units from Yangjiang nuclear power to measurement and calculation have 2000 fans, a large number of fans are in an operating state every day, and on-line bearing oiling is needed when at least 2-3 fans operate every day on average. Maintenance workers all know that the oil filling work is the most important work except that the oil is confirmed correctly, and particularly, the foreign matter is prevented from entering the oil in the oil filling process.
The fan rotor is provided with an impeller, and gas is discharged from the radial direction after entering the impeller in the axial direction and enters the fan volute. The shaft of the centrifugal fan is supported by two rolling bearings, the bearings are placed in the bearing seats, and the bearings are lubricated by grease, so that the bearing of the fan needs to be periodically oiled. The oil gun is used for oiling the oil gun, and the oiling operation is carried out through the oil nozzle clamped on the bearing seat by the oil gun. However, as the oil filling nozzle is used for a long time or has poor quality, the built-in spring at the oil filling nozzle can be loosened, so that the built-in 3mm ball falls off into the bearing chamber, if the situation is discovered in time, the bearing equipment is damaged, and even if the situation that the equipment is forced to stop to be disassembled and maintained is discovered in time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a safety device for nuclear power station fan and electrical equipment oil filler neck is in order to prevent to operate the fan refueling in-process, and fan and motor oil filler neck appear unusually, and the equipment damage incident that leads to fan and electrical equipment to be forced to disintegrate maintenance or the ball foreign matter that drops after fan and electrical equipment move takes place promptly that the oil filler neck ball gets into the bearing indoorly.
In order to achieve the above object, the utility model provides a safety device for nuclear power station fan and electrical equipment oil filler neck connects between equipment bearing frame and oil filler neck, including integrated into one piece's cylinder portion and hexagonal cylinder portion, the axis of cylinder portion with the axis coincidence of hexagonal cylinder portion, cylinder portion includes connecting end portion and screw thread portion, a plurality of through-holes have been seted up to connecting end portion's upper surface, the inside cavity of screw thread portion and outside are equipped with the external screw thread, the inner face of hexagonal cylinder portion is equipped with the internal thread, cylinder portion passes through external screw thread connection in the bearing frame, hexagonal cylinder portion passes through internal thread connection in the oil filler neck.
The utility model provides an among the safety device 3 have been seted up to the upper surface of coupling end portion the through-hole.
The utility model provides an among the safety device, the diameter of through-hole is less than 3 mm.
The present invention provides the safety device, wherein the diameter of the circumscribed circle of the hexagonal cylinder portion is larger than the diameter of the cylinder portion.
In the safety device provided by the utility model, the cylinder portion with hexagonal cylinder portion adopts the brass to make.
The utility model discloses a safety device for nuclear power station fan and electrical equipment oil filler neck has following beneficial effect: the safety device for the oil filling nozzles of the fan and the motor equipment of the nuclear power station, provided by the utility model, has simple design and easy installation, and can be widely applied to the oil filling nozzles of the fan and the motor; in the process of operating the fan and the motor to refuel, the abnormality of the fan and the motor refueling nozzle can be effectively prevented, namely, the refueling nozzle ball enters the bearing chamber to cause the fan and the motor equipment to be forcedly disassembled for maintenance or cause the equipment damage event caused by the falling ball foreign matter after the fan and the motor equipment operate, and the reliability of the equipment is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts:
fig. 1 shows a cross-sectional view of the safety device for the oil filler nozzle of the fan and the motor equipment in the nuclear power plant.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Exemplary embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the specification, and it should be understood that the specific features in the embodiments and examples of the present invention are detailed descriptions of the technical solutions of the present application, but not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present invention can be combined with each other without conflict.
The utility model discloses the spring pine of inside fixed ball takes off and the quality is poor when using for a long time to current oil filler nozzle leads to the ball pine in the oil filler nozzle to take off, causes inside fan and the motor bearing refuel in-process ball gets into the bearing frame, leads to the problem of equipment disintegration maintenance delay time limit for a project, provides a safety device for nuclear power station fan and electrical equipment oil filler nozzle. The safety device comprises a cylindrical body part provided with an external thread and a hexagonal cylindrical body part provided with an internal thread, and is connected to the bearing seat through the external thread and connected to the oil filling nozzle through the internal thread; simultaneously, the end face of the cylindrical part connected with the bearing seat is provided with a through hole with the diameter smaller than 3mm, so that the ball can be effectively prevented from falling into the bearing chamber, and meanwhile, the oil can be smoothly fed into the bearing chamber.
Fig. 1 shows a cross-sectional view of the safety device for the oil filler nozzle of the fan and the motor equipment in the nuclear power plant. As shown in fig. 1, the utility model provides a safety device for nuclear power station fan and electrical equipment oil filler neck includes integrated into one piece's cylinder 1 and hexagonal cylinder 2, the axis of cylinder 1 with the axis coincidence of hexagonal cylinder 2, the diameter of hexagonal cylinder 2's circumscribed circle is greater than the diameter of cylinder 1, cylinder 1 includes connecting end 11 and screw thread portion 12, a plurality of through-holes 111 have been seted up to connecting end 11's upper surface, the inside cavity of screw thread portion 12 and outside are equipped with the external screw thread, the inner face of hexagonal cylinder 2 is equipped with the internal thread, cylinder 1 passes through threaded connection in the bearing frame, hexagonal cylinder 2 passes through threaded connection in the oil filler neck. In the utility model, the middle part is designed into a hexagonal form, which is convenient for installation and disassembly; the bearing frame is the internal thread design, and the oil filler neck is the external screw thread design, consequently conveniently twists the bearing frame with it through the cylinder portion of external screw thread design, makes things convenient for the oil filler neck to twist simultaneously through the hexagonal cylinder portion of internal thread design.
Specifically, in an embodiment of the present invention, 3 through holes 111 are disposed on the upper surface of the connecting end portion 11, and the diameter of the through hole 111 is smaller than 3 mm. Further, the diameter of the through hole 111 is selected to be 2 mm. Through seting up 3 individual 2 mm's hole on device upper portion, can effectively block that diameter 3 mm's ball gets into the indoor portion of bearing, from this, can avoid the oil filler neck ball to get into the indoor equipment damage incident that leads to fan and electrical equipment to be forced to disintegrate maintenance or the ball foreign matter that drops after fan and electrical equipment operation and lead to of bearing and take place, improved the reliability of equipment operation.
Specifically, in an embodiment of the present invention, the cylindrical body 1 and the hexagonal cylindrical body 2 are made of brass. Through the cylinder portion and the hexagonal cylinder portion that adopt brass material integrated into one piece, this device has workable, the internal screw thread effect of difficult damage bearing frame.
The safety device for the oil filling nozzles of the fan and the motor equipment of the nuclear power station, provided by the utility model, has simple design and easy installation, and can be widely applied to the oil filling nozzles of the fan and the motor; in the process of operating the fan and the motor to refuel, the abnormality of the fan and the motor refueling nozzle can be effectively prevented, namely, the refueling nozzle ball enters the bearing chamber to cause the fan and the motor equipment to be forcedly disassembled for maintenance or cause the equipment damage event caused by the falling ball foreign matter after the fan and the motor equipment operate, and the reliability of the equipment is improved.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed aspects should not be construed as reflecting the intent: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim.
Claims (5)
1. The utility model provides a safety device for nuclear power station fan and electrical equipment nozzle, connects between equipment bearing frame and nozzle, its characterized in that, including integrated into one piece's cylinder portion (1) and hexagonal cylinder portion (2), the axis of cylinder portion (1) with the axis coincidence of hexagonal cylinder portion (2), cylinder portion (1) is including coupling end portion (11) and screw thread portion (12), a plurality of through-holes (111) have been seted up to the upper surface of coupling end portion (11), screw thread portion (12) inside cavity and outside are equipped with the external screw thread, the inner face of hexagonal cylinder portion (2) is equipped with the internal thread, cylinder portion (1) passes through thread connection in the bearing frame, hexagonal cylinder portion (2) pass through thread connection in the nozzle.
2. A safety arrangement according to claim 1, wherein 3 of said through holes (111) are provided in the upper surface of said connecting end portion (11).
3. A safety arrangement according to claim 2, wherein the diameter of the through hole (111) is less than 3 mm.
4. A safety arrangement according to claim 1, wherein the diameter of the circumcircle of the hexagonal cylinder (2) is larger than the diameter of the cylinder (1).
5. A safety arrangement according to claim 1, wherein the cylindrical body (1) and the hexagonal cylindrical body (2) are made of brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020903599.0U CN212691463U (en) | 2020-05-26 | 2020-05-26 | Safety device for oil filling nozzle of fan and motor equipment of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020903599.0U CN212691463U (en) | 2020-05-26 | 2020-05-26 | Safety device for oil filling nozzle of fan and motor equipment of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212691463U true CN212691463U (en) | 2021-03-12 |
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ID=74889225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020903599.0U Active CN212691463U (en) | 2020-05-26 | 2020-05-26 | Safety device for oil filling nozzle of fan and motor equipment of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212691463U (en) |
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2020
- 2020-05-26 CN CN202020903599.0U patent/CN212691463U/en active Active
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