CN104018963A - Pressure fluctuation buffer - Google Patents
Pressure fluctuation buffer Download PDFInfo
- Publication number
- CN104018963A CN104018963A CN201410274837.5A CN201410274837A CN104018963A CN 104018963 A CN104018963 A CN 104018963A CN 201410274837 A CN201410274837 A CN 201410274837A CN 104018963 A CN104018963 A CN 104018963A
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- cover plate
- cylindrical shell
- pressure
- fixedly connected
- joint
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- Fuel-Injection Apparatus (AREA)
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 a kind of device of slowing down fluid pressure surge, especially a kind of device that slows down the fluctuation of pipeline fluid pressure, belongs to fluid machinery technical field.
Background technique
In the transmitting procedure of fluid in pipeline, because a variety of causes inevitably exists pressure surge, these fluctuations bring very large difficulty to the measurement of system pressure, flow, cause the data such as the pressure that measures, flow to have very large error, and serious also can damage measuring cell.
In the running of diesel engine, in order to guarantee safety and the working life of equipment, need the pressure at interior each position of monitoring pipeline in time.Because high pressure oil pump and oil transfer pump periodically provide fuel oil to diesel engine cylinder block, make fuel flow in oil pipe produce pulsation, cause making the pressure of each measuring point constantly to change and fluctuation, manometric indicator constantly swings, and operations staff cannot monitor pressure accurately, simultaneously, fluctuation pressure is damaged pressure gauge very soon, the measuring point especially high in pressure surge frequency, amplitude is large, and pressure gauge is more fragile, the workload that has increased instrument inspection and maintenance, has increased maintenance cost.At present, by adjusting, measure the pressure surge that the aperture of throttle valve in pipeline reduces fuel oil in oil pipe, but this method effect is limited, and can brings certain error to measurement.
Summary of the invention
The object of this invention is to provide a kind of low cost of manufacture, installation and maintenance pressure surge buffer easily, realize the fluctuation of fuel pressure in the oil pipe of significantly decaying, avoided the damage of pressure measuring element.
The present invention is achieved by the following technical programs:
A pressure surge buffer, comprises upper connection, lower contact, cylindrical shell, at least one dividing plate, upper cover plate and lower cover plate, and described cylindrical shell upper and lower end is fixedly connected with lower cover plate with upper cover plate respectively, and upper connection lower end puts in upper cover plate and is fixedly connected with upper cover plate; Lower contact upper end is fixedly connected with lower cover plate, and at least one dividing plate is horizontal in cylindrical shell, will in cylindrical shell, be divided into lower little large cavity; In upper connection upper end, be respectively equipped with in lower contact upper end the screw-threaded counterbore being connected with GAUGE CONNECTOR or oil pipe, in upper connection lower end He in lower contact upper end, be respectively equipped with the throttle orifice communicating with screw-threaded counterbore, on described dividing plate, be also provided with throttle orifice.
Aforesaid pressure surge buffer, wherein said throttle orifice diameter is Φ 1.7mm-Φ 2.2mm; Described lower cover plate is provided with to unload puts plug screw.
The present invention has slowed down the pressure surge in diesel engine fuel oil pipe effectively.In cylindrical shell, sealed air, fuel oil is successively by the throttle orifice in lower contact upper end and the throttle orifice on dividing plate, each cavity increasing one by one through volume successively, local resistance due to throttle orifice, pressure surge reduces step by step, then arrive air cavity, utilize the further absorption tube internal pressure fluctuation of compressibility of air, the pressure surge in table is reached in the adaptable operating range of pressure gauge.The present invention is simple in structure, with low cost, be convenient to dismounting, and the pressure surge of high frequency in the diesel engine fuel oil pipe of significantly decaying has improved the physical life of the measuring cells such as pressure gauge.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present invention;
Fig. 2 is that the present invention is fixed on the structure diagram on crank box 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 Performance of Fuel-Injection System for Marine Diesel Engines signal piping, comprises upper connection 1, lower contact 2, cylindrical shell 3, two dividing plates 4, upper cover plate 5 and lower cover plates 6, and cylindrical shell 3 upper and lower end are integrally welded with upper cover plate 5 and lower cover plate 6 respectively.In upper connection 1 upper end, be respectively equipped with in lower contact 2 upper ends the screw-threaded counterbore 11 being connected with GAUGE CONNECTOR or oil pipe, in upper connection 1 lower end He in lower contact 2 upper ends, be respectively equipped with the throttle orifice 12 communicating with screw-threaded counterbore 11, upper connection 1 lower end puts in upper cover plate 5 and soldered with upper cover plate 5.Lower contact 2 upper ends and lower cover plate 6 are soldered.The present embodiment adopts two dividing plates 4 to be welded in cylindrical shell 3, and cylindrical shell 3 inner chambers are divided into the first chamber 31, the second chamber 32 and the 3rd chamber 33 that volume increases gradually from down to up.Upper connection is respectively equipped with the screw-threaded counterbore 21 being connected with GAUGE CONNECTOR or oil pipe in 1 Nei He upper end, upper end, in upper connection 1 lower end He in lower contact 2 upper ends, is respectively equipped with the throttle orifice 12 communicating with screw-threaded counterbore 21, is also provided with throttle orifice 12 on dividing plate.Because the fuel heavy oil of marine diesel engine is second-rate, for avoiding stopping up, it is Φ 2mmm that throttle orifice 12 is decided to be to throttle orifice diameter.Lower cover plate 6 is provided with to unload puts plug screw 7 so that maintenance.Fuel oil enters the present invention from lower contact 2 as the arrow direction of Fig. 1, after compensator or trimmer pressure fluctuation, from upper connection 1, directly inputs diesel engine cylinder block.
Figure 2 shows that Performance of Fuel-Injection System for Marine Diesel Engines signal piping, by pipe clamp 8, the present invention is fixed on crank box cover plate 9.Upper connection 1 is connected with pressure gauge and pressure transducer respectively by threeway, and lower contact 2 is connected with measurement pipeline.The cylindrical shell 3 of the present embodiment is divided into the chamber that three volumes increase one by one.According to actual operation requirements, the quantity of dividing plate 4 of the present invention, can be a slice, more than two or two, cylindrical shell 3 can be cut apart to the chamber that a plurality of volumes increase one by one.Due to oil transfer pump and high pressure oil pump intermittent toward fuel feeding in cylinder body, in fuel pipe, there is the significantly pressure surge of high frequency, when fuel oil passes through each chamber, local resistance due to throttle orifice 12, fuel oil reduces step by step by pressure surge, utilize the compressibility of air further to absorb the pressure surge in fuel pipe, the pressure surge in table is reached in the adaptable operating range of pressure gauge.
In addition to the implementation, the present invention can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (3)
1. a pressure surge buffer, it is characterized in that: comprise upper connection, lower contact, cylindrical shell, at least one dividing plate, upper cover plate and lower cover plate, described cylindrical shell upper and lower end is fixedly connected with lower cover plate with upper cover plate respectively, and upper connection lower end puts in upper cover plate and is fixedly connected with upper cover plate; Lower contact upper end is fixedly connected with lower cover plate, and at least one dividing plate is horizontal in cylindrical shell, will in cylindrical shell, be divided into the cavity of lower little large volume increase; In upper connection upper end, be respectively equipped with in lower contact upper end the screw-threaded counterbore being connected with GAUGE CONNECTOR or oil pipe, in upper connection lower end He in lower contact upper end, be respectively equipped with the throttle orifice communicating with screw-threaded counterbore, on described dividing plate, be also provided with throttle orifice.
2. pressure surge buffer as claimed in claim 1, is characterized in that: described throttle orifice diameter is Φ 1.7mm-Φ 2.2mm.
3. pressure surge buffer as claimed in claim 1, is characterized in that: described lower cover plate 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 true CN104018963A (en) | 2014-09-03 |
| CN104018963B CN104018963B (en) | 2016-06-01 |
Family
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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 |
|---|---|
| CN (1) | CN104018963B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019000797A1 (en) * | 2017-06-27 | 2019-01-03 | 广船国际有限公司 | Pressure buffering-type funnel device |
| CN111720217A (en) * | 2020-06-12 | 2020-09-29 | 西北工业大学 | Self-adaptive low-pressure fuel oil distributor for multi-pipe pulse detonation combustor |
| CN112525418A (en) * | 2020-12-09 | 2021-03-19 | 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019000797A1 (en) * | 2017-06-27 | 2019-01-03 | 广船国际有限公司 | Pressure buffering-type funnel device |
| CN111720217A (en) * | 2020-06-12 | 2020-09-29 | 西北工业大学 | Self-adaptive low-pressure fuel oil distributor for multi-pipe pulse detonation combustor |
| 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 |
| CN112525418A (en) * | 2020-12-09 | 2021-03-19 | 中船动力有限公司 | Fuel pressure acquisition buffer of marine diesel engine |
| CN112525418B (en) * | 2020-12-09 | 2022-11-18 | 中船动力有限公司 | Fuel pressure acquisition buffer of marine diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104018963B (en) | 2016-06-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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 |