CN215891921U

CN215891921U - Oil injection nozzle of water turbine

Info

Publication number: CN215891921U
Application number: CN202122102944.8U
Authority: CN
Inventors: 贾云亭; 宫美丽
Original assignee: Tianjin Dagu Chemical Co ltd
Current assignee: Tianjin Dagu Chemical Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-22
Anticipated expiration: 2031-09-02

Abstract

The utility model provides a hydraulic turbine oil filler point, belongs to hydraulic turbine oil filler point technical field, concretely relates to hydraulic turbine oil filler point suitable for water drive spray type cooling tower hydraulic turbine lubricating grease filling. The oil cup consists of an oil cup and an oil cup cover, wherein the front end of the oil cup is of an internal thread structure, and the rear end of the oil cup cover is of an external thread structure; the front end of the oil cup cover is closed, and the interior of the oil cup is of a cylindrical hole structure which is communicated from front to back; the oil cup and the oil cup cover are tightly connected through the internal and external thread structures of the oil cup and the oil cup cover; the rear end of the oil cup is of an external thread structure, and is tightly connected with an oil filling port of the water turbine with an internal thread structure through the external thread structure. The outer parts of the oil cup and the oil cup cover are hexagonal and are made of polytetrafluoroethylene materials. When lubricating grease needs to be added, the oil cup cover is unscrewed, so that the internal thread structure at the front end of the oil cup is connected with the external thread structure of the oil gun hose, leakage of the lubricating grease during addition is prevented, and corrosion of the acid-base water serving as a working medium to the oil nozzle is avoided.

Description

Oil injection nozzle of water turbine

Technical Field

The utility model belongs to the technical field of water turbine oil injection nozzles, and particularly relates to a water turbine oil injection nozzle suitable for injecting lubricating grease into a water turbine of a water-driven spray type cooling tower.

Background

The water turbine of the water-driven spray type cooling tower connecting spray pipe has a bearing sliding mode and a non-bearing sliding mode, and the two sliding modes respectively have advantages and disadvantages, wherein the bearing sliding mode has the advantages of long service cycle of equipment and the disadvantages of high requirement on waterproof sealing of the bearing; the advantages and disadvantages of the non-bearing sliding mode are just opposite to the bearing sliding mode. For the water turbine adopting the bearing sliding mode, grease needs to be filled periodically to prolong the service life of the water turbine, and therefore, grease needs to be filled periodically by using a grease gun. The oil filling nozzle in the prior art consists of a sealing ball 3, a spring 2 and an oil filling body 1. When lubricating grease needs to be added, the tube head of the oil filling gun tube is abutted against the oil filling hole 4 in front of the small sealing ball 3, under the extrusion action of the oil filling gun pressing handle, the lubricating grease pushes the sealing steel ball 3 and the compression spring 2 through the oil filling hole 4 to enter the oil filling body 1, and under the continuous extrusion action of the lubricating grease, the lubricating grease passes through the oil filling body 1 to enter a bearing chamber of the hydraulic turbine, so that the lubricating grease filling work of the hydraulic turbine is completed. From the material, because of the long-term work of oil filler point in aqueous, sealed pellet, spring and oil filler point material need adopt 304 stainless steel at least, otherwise the oil filler point can be corroded by acid and alkaline water very fast and fall, lead to unable filling. In terms of cost, the processing of the sealing small ball and the spring is troublesome, so that the cost is increased invisibly; in terms of the installation of the spring, the oil injection nozzle is small in size, and the spring needs to be fixed and kept after being placed into the oil injection body, so that the installation is difficult. Secondly, the sealing of the oil filling hole is realized by pushing up the small sealing ball by the elasticity of the spring, so that the oil filling hole can not be filled with water. Before the oil nozzle was not used, because there is not lubricating grease in the oiling agent, sealed bobble can realize the sealed of oil filler point under the effect of spring force, but in case after starting to annotate lubricating grease, because the viscosity effect of lubricating grease can produce certain hindrance effect to the spring, influence the sealed of sealed bobble, lead to lubricating grease and water contact, pollute lubricating grease when treating next filling to make lubricating grease efficiency reduce. In view of the foregoing, there is a need for an improved grease nipple.

SUMMERY OF THE UTILITY MODEL

The utility model provides a water turbine oil injection nozzle, which solves the problems of the existing oil injection nozzle and comprises the following specific contents:

a novel water turbine oil injection nozzle is composed of an oil cup 7 and an oil cup cover 6. In order to prevent the corrosion of the working medium, namely the acid-base water, the oil cup 7 and the oil cup cover 6 are made of polytetrafluoroethylene materials. The outer parts of the oil cup 7 and the oil cup cover 6 are hexagonal, so that the oil cup is convenient to install by using tools (according to the flowing direction of the grease, each part is conveniently divided into a front end and a rear end for description, namely, one end through which the grease flows first is called a front end, and one end through which the grease flows later is called a rear end), the front end of the oil cup 7 is of an internal thread structure, and the rear end of the oil cup cover 6 is of an external thread structure; the front end of the oil cup cover 6 is closed, the oil cup 7 and the oil cup cover 6 can be tightly connected through the internal thread structure and the external thread structure, so that the oil injection nozzle is closed, water can be prevented from being immersed, lubricating grease can be prevented from being mixed with water, and the oil cup cover is convenient to disassemble and assemble; the inner part of the oil cup 7 is of a cylindrical hole structure which is through from front to back, the rear end of the oil cup 7 is of an external thread structure, and the oil cup can be connected with a water turbine oil injection port 5 with an internal thread structure.

Compared with the existing oil injection nozzle, the oil injection nozzle of the water turbine has the following advantages: firstly, the structure is simple, and only the oil cup and the oil cup cover are provided; secondly, the processing technology is simple, and no other technology is available except for the thread and the cylindrical hole structure; thirdly, the oil filling hole is tightly sealed; fourthly, the manufacturing cost is low.

Drawings

FIG. 1 is a schematic structural diagram of a modified fore turbine oil injection nozzle;

FIG. 2 is a schematic structural diagram of a modified water turbine oil injection nozzle;

the names of the parts are: the oil filling device comprises an oil filling body 1, a spring 2, a sealing small ball 3, an oil filling hole 4, an oil filling port 5, an oil cover cup 6 and an oil cup 7.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as can be seen from fig. 2, the oil cup 7 and the oil cup cover 6 of the present invention are hexagonal in shape, so as to facilitate installation by using tools (according to the flow direction of grease, each component is divided into a front end and a rear end for description, i.e., one end through which grease flows first is referred to as a front end, and one end through which grease flows later is referred to as a rear end), the front end of the oil cup 7 is of an internal thread structure, and the rear end of the oil cup cover 6 is of an external thread structure; the front end of the oil cup cover 6 is of a closed structure, the oil cup 7 and the oil cup cover 6 can be tightly connected through the internal thread structure and the external thread structure, and the oil filling nozzle is further closed, so that water can be prevented from being immersed, lubricating grease can be prevented from being mixed with water, and the oil cup cover is convenient to disassemble and assemble; the inner part of the oil cup 7 is of a cylindrical hole structure which is through from front to back, the rear end of the oil cup 7 is of an external thread structure, and the oil cup can be connected with a water turbine oil injection port 5 with an internal thread structure.

When lubricating grease needs to be added, the oil cup cover 6 is unscrewed, so that the internal thread structure at the front end of the oil cup 7 is connected with the external thread structure of the oil gun hose, leakage of the lubricating grease during addition is prevented, and corrosion of the acid-base water of a working medium to the oil nozzle is avoided. When the lubricating grease is filled, the lubricating grease is continuously added into the oil cup 7 through the extrusion action of the pressure handle of the oil filling gun and then enters the bearing chamber of the water turbine through the oil filling port 5. After the filling is finished, the hose of the oil filling gun is unscrewed, and the oil cup cover 6 is screwed into the oil cup 7, so that the filling of the lubricating grease and the sealing of the oil filling nozzle are finished.

Claims

1. A kind of hydraulic turbine oil nozzle, characterized by: the oil cup consists of an oil cup (7) and an oil cup cover (6), wherein the front end of the oil cup (7) is of an internal thread structure, and the rear end of the oil cup cover (6) is of an external thread structure; the front end of the oil cup cover (6) is closed, and the interior of the oil cup (7) is of a cylindrical hole structure which is communicated from front to back; the oil cup (7) is tightly connected with the oil cup cover (6) through the internal and external thread structures of the oil cup (7) and the oil cup cover (6); the rear end of the oil cup (7) is of an external thread structure, and is tightly connected with the water turbine oil injection port (5) with an internal thread structure through the external thread structure.

2. A turbine nozzle as claimed in claim 1, wherein: the outer parts of the oil cup (7) and the oil cup cover (6) are in hexagonal shapes.

3. A turbine nozzle as claimed in claim 1, wherein: the oil cup (7) and the oil cup cover (6) are made of polytetrafluoroethylene materials.