CN214403902U - Oil suction pipe structure with jet flow structure - Google Patents
Oil suction pipe structure with jet flow structure Download PDFInfo
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- CN214403902U CN214403902U CN202023165496.8U CN202023165496U CN214403902U CN 214403902 U CN214403902 U CN 214403902U CN 202023165496 U CN202023165496 U CN 202023165496U CN 214403902 U CN214403902 U CN 214403902U
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- head pump
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Abstract
The utility model discloses a take oil suction pipe structure of efflux structure, this structure provides the structure that sets up the ejector on the pump hydraulic fluid port of spindle nose pump. The utility model has the advantages that: the ejector device arranged on the oil suction pipe of the spindle head pump forcibly conveys lubricating oil to the oil suction port of the spindle head pump, so that the spindle head pump is ensured to stably suck oil, the cavitation phenomenon is effectively avoided, the service life of the spindle head pump is prolonged, and the effective operation of the unit is ensured. The structure is efficient and simple, the operation is convenient, and the maintenance is simple.
Description
Technical Field
The utility model belongs to the technical field of fuel feeding equipment, especially, relate to unit spindle nose pump suction oil pipe structure, specifically be a take oil suction pipe structure of efflux structure.
Background
In the unit lubrication working condition, the compressor unit drives the spindle head pump to supply lubricating oil to the unit when in operation. When the spindle head pump starts, an electric pump on the lubricating equipment is needed to supply lubricating oil to the unit. The oil suction pipe of the spindle head pump sucks oil from the oil tank of the lubricating device, the compressor unit and the lubricating device are respectively arranged on different platforms, and the spindle head pump is not smooth in oil suction and easy to generate cavitation phenomena due to the fact that the oil suction pipe of the spindle head pump is long, the number of bent pipes is large, and oil suction resistance is large.
Meanwhile, in the prior art, the rotating speed of the compressor unit is variable, and a spindle head pump is adopted as a main oil pump, so that the constant pressure stability of lubricating oil cannot be guaranteed, and the lubricating effect is poor. Because the unit operates at a high rotating speed, the flow velocity in the oil suction pipe is too large, and the phenomenon of cavitation is easily caused at the inlet of the shaft head pump.
Cavitation erosion phenomenon makes the spindle nose pump oil mass reduce, and the volumetric efficiency reduces to can lead to the system to appear flow pressure pulsation, destroy system stability. Therefore, effective measures are taken to prevent the spindle head pump from generating cavitation, and the spindle head pump has positive effects on improving the working efficiency and the system stability of the spindle head pump, reducing the system noise and prolonging the service life of the spindle head pump.
Disclosure of Invention
The utility model aims to solve to the compressor unit among the prior art under the condition of rotational speed change, adopt the spindle nose pump not smooth as the main oil pump oil absorption, unable normal work, and then can not provide the technical problem of emollient to the unit lubrication point. Providing an oil suction pipe structure with a jet flow structure; the structure is simple, and the operation is convenient; the stability of the oil absorption of the spindle nose pump can be guaranteed, the noise of the spindle nose pump is reduced, the problem of unit vibration caused by unsmooth oil absorption is avoided, the service life of the mechanical main pump is effectively prolonged, and stable operation of the unit is effectively prolonged.
In order to achieve the above purpose, the specific technical solution of the present invention is:
an oil suction pipe structure with a jet structure comprises a spindle head oil suction pipe connected with an oil tank, wherein the spindle head oil suction pipe is communicated with a spindle head pump; the shaft head pump is provided with a shaft head pump outlet oil pipe; an ejector is arranged on a spindle head pump oil pumping pipe connected with the oil tank and communicated with an electric pump pressure oil pipe.
As a better implementation mode in the application, the axial line of the ejector is axially crossed with the oil pumping pipe of the spindle head pump on the spindle head pump.
As a preferred embodiment in this application, the head pump is connected to the compressor.
As a preferred embodiment in the present application, a nozzle is provided on the ejector, and a throttle valve is provided between the nozzle and the pressure oil pipe of the electric pump for adjusting the inlet pressure and the flow rate of the ejector.
As a better implementation mode in the application, the oil outlet end of the ejector is obliquely crossed with an oil pumping pipe of a spindle head pump on the spindle head pump, and the angle is 30-60 degrees.
As a preferred embodiment of the present application, the jet device is made of an oxidation-resistant and corrosion-resistant material, such as stainless steel.
As a better implementation mode in the application, the pump oil pipe of the shaft head pump is connected with the elbow of the pump of the shaft head pump.
The oil outlet end of the ejector is obliquely crossed with an oil suction pipe of the spindle head pump, and the oil inlet pressure of a nozzle arranged on the ejector is provided by an electric pump of the lubricating device. And a throttle valve is provided between the nozzle and the electric pump pressure oil pipe. And controlling the throttle valve according to the pressure of the pressure oil pipe of the electric pump and the flow of the lubricating oil so as to stably charge oil to the oil suction pipe of the shaft head pump and ensure the oil pumping stability of the shaft head pump.
The main scheme and the further selection schemes of the utility model can be freely combined to form a plurality of schemes, which are the schemes that can be adopted and claimed by the utility model; and the utility model discloses also can the independent assortment between (each non-conflict selection) selection and between other choices. The technical solutions to be protected by the present invention, which are various combinations that can be known to those skilled in the art based on the prior art and the common general knowledge after understanding the present invention, are not exhaustive herein.
Compared with the prior art, the beneficial effects of the utility model are that:
the structure is compact, the layout is reasonable, the control is stable, and the maintenance is convenient.
The structure can ensure the stability of the shaft head pump for oil absorption, reduce the noise of the shaft head pump, avoid the problem of unit vibration caused by unsmooth oil absorption, and effectively prolong the service life of the mechanical main pump and the stable operation of the unit.
The structure does not need to provide additional moving parts, and has the advantages of simple structure, reliable work, difficult damage, low cost and quick response.
Drawings
Fig. 1 is a schematic view of the structure of the oil suction pipe with the jet structure of the present invention.
Fig. 2 is a schematic diagram of the structure operation of the oil suction pipe with the jet structure of the present invention.
Wherein, 1-spindle nose pump, 2-compressor, 3-spindle nose pump oil pumping pipe, 4-ejector, 5-oil tank, 6-throttle valve, 7-spindle nose pump oil pumping pipe, 8-electric lubricating equipment, 9-unit removing lubricating point.
Detailed Description
An oil suction pipe structure with a jet structure comprises a spindle head oil suction pipe connected with an oil tank, wherein the spindle head oil suction pipe is communicated with a spindle head pump; the shaft head pump is provided with a shaft head pump outlet oil pipe; an ejector is arranged on a spindle head pump oil pumping pipe connected with the oil tank and communicated with an electric pump pressure oil pipe.
And the axial line of the ejector is axially and obliquely crossed with an oil pumping pipe of a spindle head pump on the spindle head pump.
The shaft head pump is connected with the compressor.
The jet device is provided with a nozzle, and a throttle valve is arranged between the nozzle and the pressure oil pipe of the electric pump and used for adjusting the inlet pressure and the flow rate of the jet device.
The oil outlet end of the ejector is obliquely crossed with a spindle head pumping oil pipe on the spindle head pump, and the angle is 30-80 degrees.
The jet device is made of oxidation-resistant and corrosion-resistant materials, such as stainless steel.
The shaft head pump oil pumping pipe is connected with the elbow for the shaft head pump.
The oil outlet end of the ejector is obliquely crossed with an oil suction pipe of the spindle head pump, and the oil inlet pressure of a nozzle arranged on the ejector is provided by an electric pump of the lubricating device. And a throttle valve is provided between the nozzle and the electric pump pressure oil pipe. And controlling the throttle valve according to the pressure of the pressure oil pipe of the electric pump and the flow of the lubricating oil so as to stably charge oil to the oil suction pipe of the shaft head pump and ensure the oil pumping stability of the shaft head pump.
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that, in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Additionally, the utility model discloses it is pointed out that, in the utility model, if do not write out structure, connection relation, positional relationship, power source relation etc. that concretely relates to very much, then the utility model relates to a structure, connection relation, positional relationship, power source relation etc. are technical personnel in the field on prior art's basis, can not learn through creative work.
Example 1:
referring to fig. 1, the oil suction pipe structure with the jet flow structure comprises an oil tank (lubrication equipment) 5 and a spindle head oil pumping pipe 3, wherein a jet device 4 is arranged on the spindle head oil pumping pipe. The spindle head pump oil pumping pipe 3 is designed according to the principle of a jet device, and a nozzle, a suction cavity, a mixing cavity and a diffusion cavity of the jet device 4 are arranged on the spindle head pump oil pumping pipe 3; the structure of the ejector is the prior art and is not described in detail.
The nozzle of the jet device 4 is connected on the spindle nose oil pumping pipe 1, and is converged in the suction cavity of the spindle nose oil pumping pipe and obliquely crossed with the spindle nose oil pumping pipe. So that the ejector 4 and the oil suction pipe of the spindle head pump work together. The pressure oil of the electric lubricating equipment provides power for the ejector 4-nozzle.
Before the unit operates, an electric pump on the lubricating equipment firstly provides lubricating oil for each lubricating point of the unit on one hand, and on the other hand, pressure oil of the electric pump enters the shaft head pump oil pumping pipe 3 through a throttle valve to pre-flush the lubricating oil for the shaft head pump 1. And the throttle valve 6 can regulate the oil pressure at the nozzle inlet.
When the spindle head pump 1 of the unit self meets the independent operation condition, the spindle head pump 1 starts the spindle head pump to pump the oil pipe 3 and the ejector 4 to work jointly, lubricating oil in the work forms high-speed jet flow through the ejector 4-nozzle, the high-speed jet flow winding tape ejects fluid flow to perform momentum exchange in the mixing cavity (pressure oil provided by the electric pump meets pressure oil in the spindle head pump oil suction pipe 3 in the mixing cavity, the pressure oil provided by the electric pump has high point speed, and the impact spindle head pumps the pressure oil in the oil pipe 3, so that the pressure oil speed in the spindle head pump oil suction pipe 3 is increased). The lubricating oil converts the velocity energy into pressure energy through the diffusion cavity, thereby increasing the cavitation margin NPSHA of the device.
The aforesaid the utility model discloses basic embodiment and each further alternative can the independent assortment in order to form a plurality of embodiments, is the utility model discloses can adopt and claim the embodiment of protection. In the scheme of the utility model, each selection example can be combined with any other basic examples and selection examples at will.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a take oil absorption pipe structure of efflux structure, has included spindle nose pump oil suction pipe (3) of being connected with oil tank (5), its characterized in that: the shaft head pump oil pumping pipe (3) is communicated with the shaft head pump (1); a shaft head pump outlet oil pipe (7) is arranged on the shaft head pump (1); an ejector (4) is arranged on a shaft head pump oil pumping pipe (3) connected with an oil tank (5), and the ejector (4) is communicated with an electric pump pressure oil pipe.
2. The oil suction pipe structure with jet flow structure of claim 1, wherein: the axial line of the jet device (4) is axially crossed with the shaft head pumping oil pipe (3) on the shaft head pump (1).
3. The oil suction pipe structure with jet configuration of claim 1, wherein: the shaft head pump (1) is connected with the compressor (2).
4. The oil suction pipe structure with jet configuration of claim 1, wherein: the jet device (4) is provided with a nozzle, and a throttle valve (6) is arranged between the nozzle and a pressure oil pipe of the electric pump and used for adjusting the inlet pressure and the flow rate of the jet device (4).
5. The oil suction pipe structure with jet configuration of claim 2, wherein: the oil outlet end of the ejector (4) is obliquely crossed with a shaft head pumping oil pipe (3) on the shaft head pump (1) at an angle of 30-60 degrees.
6. The oil suction pipe structure with jet configuration of claim 1, wherein: the jet device (4) is made of oxidation-resistant and corrosion-resistant materials.
7. The oil suction pipe structure with jet configuration of claim 1, wherein: the shaft head pump oil pumping pipe (3) is connected with the shaft head pump (1) through an elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023165496.8U CN214403902U (en) | 2020-12-24 | 2020-12-24 | Oil suction pipe structure with jet flow structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023165496.8U CN214403902U (en) | 2020-12-24 | 2020-12-24 | Oil suction pipe structure with jet flow structure |
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| Publication Number | Publication Date |
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| CN214403902U true CN214403902U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023165496.8U Active CN214403902U (en) | 2020-12-24 | 2020-12-24 | Oil suction pipe structure with jet flow structure |
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| CN (1) | CN214403902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115571641A (en) * | 2022-10-11 | 2023-01-06 | 中航超能(苏州)科技有限公司 | Calcium hydroxide conveying system and method |
-
2020
- 2020-12-24 CN CN202023165496.8U patent/CN214403902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115571641A (en) * | 2022-10-11 | 2023-01-06 | 中航超能(苏州)科技有限公司 | Calcium hydroxide conveying system and method |
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