CN104018963B - Pressure fluctuation buffer - Google Patents
Pressure fluctuation buffer Download PDFInfo
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- CN104018963B CN104018963B CN201410274837.5A CN201410274837A CN104018963B CN 104018963 B CN104018963 B CN 104018963B CN 201410274837 A CN201410274837 A CN 201410274837A CN 104018963 B CN104018963 B CN 104018963B
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Abstract
The invention discloses a pressure fluctuation buffer, which comprises an upper joint, a lower joint, a cylinder body, at least one partition plate, an upper cover plate and a lower cover plate, wherein the upper end and the lower end of the cylinder body are respectively and fixedly connected with the upper cover plate and the lower cover plate; the upper end of the lower joint is fixedly connected with the lower cover plate, at least one partition plate is transversely arranged in the barrel and divides the barrel into a cavity with a small lower part and a large upper part and with an increased volume, orifices communicated with the threaded counter bores are respectively arranged in the lower end of the upper joint and the upper end of the lower joint, and orifices are also arranged on the partition plate. The invention has simple structure, low cost and convenient disassembly and assembly, effectively slows down the pressure fluctuation in the fuel pipe of the diesel engine, and prolongs the practical service life of measuring elements such as a pressure gauge and the like.
Description
Technical field
The present invention relates to the device of a kind of slowing down fluid pressure surge, especially a kind of device slowing down the fluctuation of pipeline fluid pressure, belongs to fluid machinery technical field.
Background technology
In the transmitting procedure of fluid in pipeline, due to various reason inevitable there is pressure surge, these fluctuations bring very big difficulty to the measurement of system pressure, flow, cause and measure the pressure that obtains, the data such as flow there is very big error, serious also can damage measuring sensor.
In the operational process of diesel engine, in order to ensure safety and the work-ing life of equipment, it is necessary to monitor the pressure at each position in pipeline in time. Owing to injection pump and transfer pump periodically provide fuel oil to diesel engine cylinder block, fuel flow in oil pipe is made to produce pulsation, causing the pressure making each measuring point constantly change and fluctuate, manometric indicator constantly swings, and operation personnel cannot monitor pressure accurately, simultaneously, pulsating pressure makes tensimeter damage very soon, and especially at pressure surge frequency height, measuring point that amplitude is big, tensimeter more easily damages, add the workload of instrument inspection and maintenance, increase maintenance cost. At present, by regulating the aperture measuring throttling valve in pipeline to reduce the pressure surge of fuel oil in oil pipe, but this kind of method limited efficiency, and certain error can be brought to measurement.
Summary of the invention
It is an object of the invention to provide a kind of low cost of manufacture, installation and maintenance pressure surge snubber easily, it is achieved the fluctuation of oil pipe fuel pressure of significantly decaying, avoids the damage of pressure measuring element.
The present invention is achieved by the following technical programs:
A kind of pressure surge snubber, comprises top connection, lower sub, cylinder, at least one piece of dividing plate, upper cover plate and lower cover, and described cylinder upper and lower ends is fixedly connected with lower cover with upper cover plate respectively, and the lower end of top connection puts in cover plate and is fixedly connected with upper cover plate; Lower sub upper end is fixedly connected with lower cover, and at least one piece of dividing plate is horizontal to be put in cylinder, will be divided into lower little big cavity in cylinder; It is respectively equipped with and the screw-threaded counterbore that pressure tapping or oil pipe are connected in top connection upper end He in lower sub upper end, it is respectively equipped with, in the lower end of top connection and in lower sub upper end, the throttle orifice communicated with screw-threaded counterbore, described dividing plate is also provided with throttle orifice.
Aforesaid pressure surge snubber, wherein said throttle orifice diameter is �� 1.7mm-�� 2.2mm; Described lower cover is provided with to unload puts plug screw.
The present invention slow down the pressure surge in diesel fuel pipe effectively. Air is sealed in cylinder, fuel oil is successively by the throttle orifice in lower sub upper end and the throttle orifice on dividing plate, each cavity increased one by one through volume successively, due to the shock resistance of throttle orifice, pressure surge reduces step by step, then arrive air chamber, utilize pressure surge in the further absorption tube of the compressibility of air, the pressure surge in table is reached in the working range that tensimeter can adapt to. Present configuration is simple, with low cost, be convenient to dismounting, the pressure surge of high frequency in diesel fuel pipe of significantly decaying, it is to increase the practical life of the measuring sensors such as tensimeter.
Accompanying drawing explanation
Fig. 1 is the structure diagram of the present invention;
Fig. 2 is the structure diagram that the present invention is fixed on crankcase cover plate.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present embodiment is applied to marine diesel prime the fuel system detection pipeline, comprises top connection 1, lower sub 2, cylinder 3, two pieces of dividing plates 4, upper cover plate 5 and lower cover 6, and cylinder 3 upper and lower ends is integrally welded with upper cover plate 5 and lower cover 6 respectively. It is respectively equipped with, in top connection 1 upper end He in lower sub 2 upper end, the screw-threaded counterbore 11 being connected with pressure tapping or oil pipe, being respectively equipped with, in top connection 1 time end and lower sub 2 upper end, the throttle orifice 12 communicated with screw-threaded counterbore 11, top connection 1 time end puts in cover plate 5 and soldered with upper cover plate 5. Lower sub 2 upper end and lower cover 6 are soldered. The present embodiment adopts two pieces of dividing plates 4 to be welded in cylinder 3, and cylinder 3 lumen segmentation becomes the first room, chamber 31, the 2nd room, chamber 32 and the 3rd room, chamber 33 that volume from down to up increases gradually. It is respectively equipped with, in top connection 1 upper end He in upper end, the screw-threaded counterbore 21 being connected with pressure tapping or oil pipe, it is respectively equipped with, in top connection 1 time end and in lower sub 2 upper end, the throttle orifice 12 communicated with screw-threaded counterbore 21, dividing plate is also provided with throttle orifice 12. Owing to the fuel heavy oil quality of marine diesel is poor, for avoiding blocking, it is �� 2mmm that throttle orifice 12 is decided to be throttle orifice diameter. Lower cover 6 is provided with to unload puts plug screw 7 so that keeping in repair. Fuel oil such as the arrow direction of Fig. 1 enters the present invention from lower sub 2, directly inputs diesel engine cylinder block from top connection 1 after compensator or trimmer pressure fluctuates.
Fig. 2 show marine diesel prime the fuel system detection pipeline, the present invention is fixed on crankcase cover plate 9 by pipe clamp 8. Top connection 1 is connected with tensimeter and pressure transmitter respectively by threeway, and lower sub 2 is connected with measurement pipeline. The cylinder 3 of the present embodiment is divided into the room, chamber that three volumes increase one by one. According to actual service requirements, the quantity of dividing plate 4 of the present invention, can be more than a slice, two panels or two panels, and cylinder 3 can be split the room, chamber that multiple volume increases one by one. Due to transfer pump and injection pump intermittence toward fuel feeding in cylinder body, the pressure surge of significantly high frequency is there is in oil fuel pipe, when fuel oil is by each room, chamber, due to the shock resistance of throttle orifice 12, fuel oil is reduced step by step by pressure surge, utilize the compressibility of air to absorb the pressure surge in fuelpipe further, the pressure surge in table is reached in the working range that tensimeter can adapt to.
In addition to the implementation, the present invention can also have other enforcement modes, and all employings are equal to replacement or the technical scheme of equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (3)
1. a pressure surge snubber, comprises top connection, lower sub, cylinder, at least one piece of dividing plate, upper cover plate and lower cover, and described cylinder upper and lower ends is fixedly connected with lower cover with upper cover plate respectively, and the lower end of top connection puts in cover plate and is fixedly connected with upper cover plate; Lower sub upper end is fixedly connected with lower cover, and at least one piece of dividing plate is horizontal to be put in cylinder, the cavity that lower little big volume will be divided in cylinder to increase; It is characterized in that: be respectively equipped with and the screw-threaded counterbore that pressure tapping or oil pipe are connected in top connection upper end He in lower sub upper end, it is respectively equipped with, in the lower end of top connection and in lower sub upper end, the throttle orifice communicated with screw-threaded counterbore, described dividing plate is also provided with throttle orifice.
2. pressure surge snubber as claimed in claim 1, it is characterised in that: described throttle orifice diameter is �� 1.7mm-�� 2.2mm.
3. pressure surge snubber as claimed in claim 1, it is characterised in that: described lower cover is provided with to unload puts plug screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274837.5A CN104018963B (en) | 2014-06-19 | 2014-06-19 | Pressure fluctuation buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274837.5A CN104018963B (en) | 2014-06-19 | 2014-06-19 | Pressure fluctuation buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104018963A CN104018963A (en) | 2014-09-03 |
| CN104018963B true CN104018963B (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410274837.5A Active CN104018963B (en) | 2014-06-19 | 2014-06-19 | Pressure fluctuation buffer |
Country Status (1)
| Country | Link |
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| CN (1) | CN104018963B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206901750U (en) * | 2017-06-27 | 2018-01-19 | 广船国际有限公司 | A kind of pressure buffer formula funnel device |
| CN111720217B (en) * | 2020-06-12 | 2021-07-06 | 西北工业大学 | Self-adaptive low-pressure fuel oil distributor for multi-pipe pulse detonation combustor |
| CN112525418B (en) * | 2020-12-09 | 2022-11-18 | 中船动力有限公司 | Fuel pressure acquisition buffer of marine diesel engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170761A (en) * | 1990-10-01 | 1992-12-15 | Aisan Kogyo Kabushiki Kaisha | Apparatus for controlling idling revolution speed of internal combustion engine |
| JPH0953536A (en) * | 1995-08-09 | 1997-02-25 | Honda Motor Co Ltd | Support structure of fuel pump |
| CN201363326Y (en) * | 2009-03-03 | 2009-12-16 | 丹东克隆集团有限责任公司 | Corrugated tube pressure balancer |
| CN202631179U (en) * | 2012-05-11 | 2012-12-26 | 浙江豪情汽车制造有限公司 | Simple testing arrangement for reversible valve protection pressure |
| CN203939601U (en) * | 2014-06-19 | 2014-11-12 | 中船动力有限公司 | Pressure surge buffer |
-
2014
- 2014-06-19 CN CN201410274837.5A patent/CN104018963B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170761A (en) * | 1990-10-01 | 1992-12-15 | Aisan Kogyo Kabushiki Kaisha | Apparatus for controlling idling revolution speed of internal combustion engine |
| JPH0953536A (en) * | 1995-08-09 | 1997-02-25 | Honda Motor Co Ltd | Support structure of fuel pump |
| CN201363326Y (en) * | 2009-03-03 | 2009-12-16 | 丹东克隆集团有限责任公司 | Corrugated tube pressure balancer |
| CN202631179U (en) * | 2012-05-11 | 2012-12-26 | 浙江豪情汽车制造有限公司 | Simple testing arrangement for reversible valve protection pressure |
| CN203939601U (en) * | 2014-06-19 | 2014-11-12 | 中船动力有限公司 | Pressure surge buffer |
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|---|---|
| CN104018963A (en) | 2014-09-03 |
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Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |
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| CP03 | Change of name, title or address |