CN217327526U - Pipeline for reducing static pressure in front of pump and generator set thereof - Google Patents
Pipeline for reducing static pressure in front of pump and generator set thereof Download PDFInfo
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- CN217327526U CN217327526U CN202220486042.0U CN202220486042U CN217327526U CN 217327526 U CN217327526 U CN 217327526U CN 202220486042 U CN202220486042 U CN 202220486042U CN 217327526 U CN217327526 U CN 217327526U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The utility model relates to a U type pipe technique especially relates to a pipeline and generator set of static pressure before reducing the pump, and it includes: the pipeline comprises a first pipeline, a second pipeline and a third pipeline, wherein the top and bottom interfaces of the second pipeline are respectively communicated with the first pipeline and the third pipeline, the first pipeline is a double-bend U-shaped pipe, and the third pipeline is a single-bend U-shaped pipe; can utilize the pipeline structure of present case to form the pressure difference and come the shutoff pipeline internal gas outflow to put empty daily oil tank lower part pipeline, in order to realize preventing the discharge of air in the second pipeline, form gas filled tube way, thereby internal pressure borrows this, make daily oil tank liquid level to the static pressure of the first pipeline in its below, can not produce other pressure because of the dead weight, thereby greatly reduced the static pressure of pipeline export, improve the leakage problem that the static pressure leads to, a generator set is still provided.
Description
Description of the cases
The application is a divisional application of a pipeline for reducing static pressure in front of a pump and a generator set thereof (application number: 2021219806617, application date: 2021, 8 months and 23 days).
Technical Field
The utility model relates to a U type pipe technique especially relates to a pipeline of static pressure before reducing pump and generator set thereof.
Background
In the prior art, in order to consider the problem of factory building fire safety and meet the emergency starting capability of a diesel generating set in a nuclear power plant, a daily fuel tank of a general diesel generating set is arranged at a high position, and therefore the height of an oil outlet is higher than that of a high-pressure oil pump of the diesel generating set.
However, long-time operation verification shows that when the high-pressure oil pump is in a static state at ordinary times, fuel oil permeates into a lubricating oil return pipe through a plunger as long as fuel oil static pressure exists, and then enters an oil pan of a diesel engine, so that the problems that the flash point of the lubricating oil of a unit is increased, the quality of the lubricating oil is reduced and the like are caused.
In order to solve the problem, the conventional scheme performs maintenance by replacing the lubricating oil, but the method cannot be radically cured, and the scheme must be maintained by frequently replacing the lubricating oil in the later period, so the scheme is not economical and practical.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a pipeline of static pressure before reducing the pump to reduce the static pressure of pipeline export, improve the leakage problem that the static pressure leads to.
In order to achieve the above object, according to a first aspect of the present invention, there is provided a pipe for reducing static pressure before a pump, comprising: the pipeline comprises a first pipeline, a second pipeline and a third pipeline, wherein the top and bottom interfaces of the second pipeline are respectively communicated with the first pipeline and the third pipeline, the first pipeline is a double-bend U-shaped pipe, and the third pipeline is a single-bend U-shaped pipe.
In a possible preferred embodiment, the second pipeline has a larger pipe diameter than the first pipeline and the second pipeline, and a throttle orifice is distributed in the second pipeline.
In a possible preferred embodiment, the lowermost end H1 of the first conduit is below the top joint H2 of the second conduit and the uppermost end H3 of the third conduit is above the bottom joint H4 of the second conduit.
In a possible preferred embodiment, a throttling wall is arranged at the interface of the top and the bottom of the second pipeline, and the first pipeline and the third pipeline are respectively communicated with the interface of the top and the bottom of the second pipeline through openings on the throttling wall.
In a possible preferred embodiment, the second conduit is a straight conduit.
In order to achieve the above object, according to a second aspect of the present invention, there is provided a pipe for reducing static pressure before a pump, comprising: first pipeline, second pipeline, third pipeline, back flow, second pipeline top interface and first pipeline intercommunication, second pipeline bottom interface includes: the backflow interface is higher than the drainage interface, the first end of the backflow pipe is communicated with the backflow interface of the second pipeline, the second end of the backflow pipe is connected to the backflow port arranged at the first position on the second pipeline, and the third pipeline is connected to the drainage interface of the second pipeline.
In a possible preferred embodiment, the first pipeline and the top interface of the second pipeline are combined into a double-bend U-shaped pipe, and the drainage interface of the third pipeline and the drainage interface of the second pipeline are combined into a single-bend U-shaped pipe.
In a possible preferred embodiment, a throttling wall is arranged at the top interface and the return interface of the second pipeline, and the first pipeline and the return pipe are respectively communicated with the top interface and the return interface of the second pipeline through openings in the throttling wall.
In a possible preferred embodiment, the second pipeline has a larger diameter than the first pipeline and the second pipeline, and a throttle orifice plate is arranged in the second pipeline.
In order to achieve the above object, according to a third aspect of the present invention, there is also provided a generator set, including: the generator unit is connected with the fuel oil tank through the oil pipeline, wherein the oil pipeline comprises any pipeline for reducing static pressure in front of the pump.
Through the utility model provides a pipeline and generator set of static pressure before this reduction pump, can utilize the pipeline structure of present case to form the pressure difference and come the shutoff pipeline internal gas outflow, thereby put empty daily oil tank lower part pipeline, in order to realize preventing the discharge of air in the second pipeline, form gas filled tube, thereby borrow internal pressure, make the static pressure of daily oil tank liquid level to the first pipeline in its below, can not produce other pressure because of the dead weight, thereby greatly reduced the static pressure of pipeline export, the daily oil tank height has been alleviateed in other words, thereby improve the leakage problem that the static pressure leads to.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of a piping system according to a first and a second embodiments of the present invention;
fig. 2 is a schematic view of a pipeline structure according to a first embodiment of the present invention;
fig. 3 is a schematic structural view of a throttle wall in a first embodiment of the present invention;
FIG. 4 is a schematic view of a throttle orifice structure according to a first embodiment of the present invention;
fig. 5 is a schematic view of a pipe structure in a second embodiment of the present invention;
FIG. 6 is a schematic view of an orifice plate structure according to a second embodiment of the present invention;
fig. 7 is a schematic structural view of a throttling wall of a second pipe top joint according to a second embodiment of the present invention;
FIG. 8 is a schematic view of an orifice plate structure according to a second embodiment of the present invention;
fig. 9 is a schematic structural view of a throttle wall of a second pipe backflow interface according to a second embodiment of the present invention.
Description of the reference numerals
The device comprises a first pipeline 1, a second pipeline 2, a third pipeline 3, a return pipe 4, a throttle orifice 21, a throttle wall 22, a return port 23, a drainage port 24 and a return port 25.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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. And the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.
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 explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as 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 by those skilled in the art in combination with the prior art according to specific situations. Furthermore, the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. One or more of the illustrated components may be required or unnecessary, and the relative positions of the illustrated components may be adjusted according to actual needs.
(A)
As shown in fig. 1 to 4, in a first aspect of the present invention, there is provided a pipe for reducing static pressure before a pump, comprising: the pipeline comprises a first pipeline 1, a second pipeline 2 and a third pipeline 3, wherein the top and the bottom of the second pipeline 2 are respectively communicated with the first pipeline 1 and the third pipeline 3, the first pipeline 1 is a double-bend U-shaped pipe, the third pipeline 3 is a single-bend U-shaped pipe, and the second pipeline 2 is a straight pipe. Wherein the pipe diameter of the second pipeline 2 is thicker than that of the first pipeline 1 and the second pipeline 2.
Particularly, the first pipeline 3 and the third pipeline 3 adopt a U-shaped pipe matched with a thick pipe scheme of the second pipeline 2, a double-bending structure can be formed at the bottom of the daily oil tank, and a single-bending structure is formed in front of the fuel oil filtering water separator, so that bubbles or air carried by fuel oil when flowing into the pipelines can be introduced into the second pipeline by the U-shaped pipe structure, and certain pressure is formed, and therefore the outflow of gas in the pipelines is blocked through the pressure difference, the pipeline at the lower part of the daily oil tank is emptied, the discharge of the air in the second pipeline 2 is prevented, and the second pipeline 2 forms an inflation pipeline.
On the other hand, because the internal pressure of the inflation pipeline is only the static pressure from the liquid level of the daily oil tank to the liquid level of the U-shaped pipe below the daily oil tank, other pressure cannot be generated due to self weight, the static pressure of the outlet of the pipeline can be greatly reduced, and the leakage problem caused by the static pressure is solved
In addition, as shown in fig. 4, a throttle orifice 21 may be further disposed in the second pipe 2, wherein a plurality of orifices are disposed on the throttle orifice 21 to allow fuel to pass through, and the remaining plate surfaces block the fuel from passing through quickly, so as to form a flow-limiting effect, thereby increasing the flow resistance in the pipe to reduce the flow rate of the fuel, and further reducing the pressure on the outlet of the pipe when the pipe is in circulation, thereby further preventing the fuel from penetrating into the oil return pipe through the plunger and further entering the oil pan of the diesel engine.
Furthermore, in order to establish a good pressure reduction effect, in a preferred embodiment, as shown in fig. 2, the lowest end H1 of the double-curved U-tube of the first pipeline 1 is lower than the top port H2 of the second pipeline 2, while the highest end H3 of the single-curved U-tube of the third pipeline 3 is higher than the bottom port H4 of the second pipeline 2, thereby enabling air to be trapped in the second pipeline 2 to ensure the formation of an air-filled pipeline, thereby reducing the static pressure at the outlet of the pipeline.
On the other hand, in order to stabilize the internal pressure of the second pipeline 2, as shown in fig. 3, in a possible preferred embodiment, a throttle wall 22 is provided at the top and bottom interface of the second pipeline 2, and the first pipeline 1 and the third pipeline 3 are respectively communicated with the top and bottom interface of the second pipeline 2 through an opening on the throttle wall 22.
(II)
Referring to fig. 5 to 9, according to a second aspect of the present invention, there is provided a pipe for reducing static pressure before a pump, comprising: the first pipeline 1, the second pipeline 2, the third pipeline 3, the back flow pipe 4, second pipeline 2 top interface and first pipeline 1 intercommunication, second pipeline 2 bottom interface includes: the backflow interface 23 and the drainage interface 24, and the backflow interface 23 is higher than the drainage interface 24, a first end of the backflow pipe 4 is connected to the backflow interface 23 of the second pipe 2, a second end of the backflow pipe 4 is connected to a backflow port 25 arranged at a first position on the second pipe 2, and the third pipe 3 is connected to the drainage interface 24 of the second pipe 2. In an embodiment, the top joints of the first pipeline 1 and the second pipeline 2 are combined to form a double-curve U-shaped pipe, the drainage joint 24 of the third pipeline 3 and the second pipeline 2 is combined to form a single-curve U-shaped pipe, and the second pipeline 2 has a larger pipe diameter than the first pipeline 1 and the second pipeline 2.
Specifically, a double-curve U-shaped pipe is formed by combining top connectors of the first pipeline 1 and the second pipeline 2, and a single-curve U-shaped pipe is formed by combining drainage connectors 24 of the third pipeline 3 and the second pipeline 2, so that the pressure difference formed by the structure of the U-shaped pipe can be used for blocking the outflow of gas in the second pipeline 2 in cooperation with the thickness of the second pipeline 2, and the pipeline at the lower part of the daily oil tank is emptied, so that the air in the second pipeline 2 is prevented from being discharged, and an inflation pipeline is formed. The internal pressure of the inflation pipeline is only the static pressure from the liquid level of the daily oil tank to the liquid level of the U-shaped pipe below the daily oil tank, and other pressure cannot be generated due to self weight, so that the static pressure of the outlet of the pipeline is greatly reduced, and the height of the daily oil tank is equivalently reduced. Thereby allowing the problem of static pressure induced leakage to be solved.
In addition, when the fuel flows into the second pipeline 2 by the self-weight when the unit is started, a small amount of air may be carried, and in order to prevent the air from entering the high-pressure oil pump along with the fuel as much as possible, the return pipe 4 is arranged at the U-shaped pipe of the single bend to form a return structure, so that air bubbles flowing through the return port 23 of the second pipeline 2 can be guided back into the second pipeline 2, thereby reducing the air content in the fuel flowing through the drainage port 24 and preventing the air from entering the high-pressure oil pump along with the fuel.
On the other hand, in order to stabilize the internal pressure of the second pipe 2, as shown in fig. 7 to 9, a throttle wall 22 is provided at the top connection port and the return connection port 23 of the second pipe 2, and the first pipe 1 and the return pipe 4 are respectively communicated with the top connection port and the return connection port 23 of the second pipe 2 through an opening in the throttle wall 22.
Furthermore, in a preferred embodiment, a throttle orifice 21 may be disposed in the second conduit 2, as shown in fig. 6 and 8, the throttle orifice 21 is provided with a plurality of orifices to allow fuel to pass through, while the remaining plate surface blocks the rapid passage of fuel, so as to form a flow-limiting effect, thereby increasing the flow resistance in the conduit to reduce the flow rate of fuel, thereby further reducing the pressure impact on the outlet of the conduit when the conduit is circulated, and further preventing the fuel from penetrating into the oil return pipe through the plunger and further entering the oil pan of the diesel engine.
(III)
The utility model discloses a third aspect still provides a generator set, and it includes: the generator unit is connected with the fuel oil tank through the oil pipeline, wherein the oil pipeline comprises the pipeline for reducing the static pressure in front of the pump.
To sum up, through the utility model provides a this pipeline and generator set of static pressure before reduction pump can utilize the pipeline structure of present case to form the pressure difference and come the shutoff pipeline internal gas outflow to put empty daily oil tank lower part pipeline, in order to realize preventing the discharge of second pipeline 2 interior air, form the gas filled tube way, thereby internal pressure borrows this, make daily oil tank liquid level to the static pressure of its below first pipeline 1, can not produce other pressure because of the dead weight, thereby greatly reduced the static pressure of pipeline export, the daily oil tank height has been alleviateed in other words, thereby improve the leakage problem that the static pressure leads to.
The preferred embodiments of the present invention disclosed above are intended to aid in the description of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the appended claims and their full scope and equivalents, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
In addition, various different implementation manners of the embodiments of the present invention can be combined arbitrarily, and as long as it does not violate the idea of the embodiments of the present invention, it should be considered as the disclosure of the embodiments of the present invention.
Claims (5)
1. A pipe for reducing static pressure before a pump, comprising: first pipeline, second pipeline, third pipeline, back flow, second pipeline top interface and first pipeline intercommunication, second pipeline bottom interface includes: the backflow interface is higher than the drainage interface, the first end of the backflow pipe is communicated with the backflow interface of the second pipeline, the second end of the backflow pipe is connected to the backflow port arranged at the first position on the second pipeline, and the third pipeline is connected to the drainage interface of the second pipeline.
2. The pipeline for reducing static pressure before pump according to claim 1, wherein the top ports of the first pipeline and the second pipeline are combined into a double-bend U-shaped pipe, and the drainage ports of the third pipeline and the second pipeline are combined into a single-bend U-shaped pipe.
3. The pipeline for reducing static pressure before pump according to claim 1, wherein a throttling wall is arranged at the top interface and the backflow interface of the second pipeline, and the first pipeline and the backflow pipe are respectively communicated with the top interface and the backflow interface of the second pipeline through openings in the throttling wall.
4. The pipeline for reducing static pressure before pump according to claim 1, wherein the second pipeline has a larger pipe diameter than the first pipeline and the second pipeline, and a throttle orifice is arranged in the second pipeline.
5. An electrical generator set, comprising: -a generator unit, -a fuel tank, -an oil delivery conduit, said generator unit being connected to the fuel tank by means of the oil delivery conduit, characterized in that the oil delivery conduit comprises a conduit for reducing static pressure before a pump according to any of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220486042.0U CN217327526U (en) | 2021-08-23 | 2021-08-23 | Pipeline for reducing static pressure in front of pump and generator set thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121980661.7U CN216767552U (en) | 2021-08-23 | 2021-08-23 | Pipeline for reducing static pressure in front of pump and generator set thereof |
| CN202220486042.0U CN217327526U (en) | 2021-08-23 | 2021-08-23 | Pipeline for reducing static pressure in front of pump and generator set thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121980661.7U Division CN216767552U (en) | 2021-08-23 | 2021-08-23 | Pipeline for reducing static pressure in front of pump and generator set thereof |
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| Publication Number | Publication Date |
|---|---|
| CN217327526U true CN217327526U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220486042.0U Active CN217327526U (en) | 2021-08-23 | 2021-08-23 | Pipeline for reducing static pressure in front of pump and generator set thereof |
| CN202121980661.7U Active CN216767552U (en) | 2021-08-23 | 2021-08-23 | Pipeline for reducing static pressure in front of pump and generator set thereof |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121980661.7U Active CN216767552U (en) | 2021-08-23 | 2021-08-23 | Pipeline for reducing static pressure in front of pump and generator set thereof |
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| Country | Link |
|---|---|
| CN (2) | CN217327526U (en) |
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2021
- 2021-08-23 CN CN202220486042.0U patent/CN217327526U/en active Active
- 2021-08-23 CN CN202121980661.7U patent/CN216767552U/en active Active
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| Publication number | Publication date |
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| CN216767552U (en) | 2022-06-17 |
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