CN205506317U - High pressure fuel pipe seal tightness test device - Google Patents
High pressure fuel pipe seal tightness test device Download PDFInfo
- Publication number
- CN205506317U CN205506317U CN201620115104.1U CN201620115104U CN205506317U CN 205506317 U CN205506317 U CN 205506317U CN 201620115104 U CN201620115104 U CN 201620115104U CN 205506317 U CN205506317 U CN 205506317U
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- valve
- oil pipe
- pressure
- petroleum pipeline
- booster pump
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Abstract
The utility model discloses a high pressure fuel pipe seal tightness test device, it includes, and air supply trigeminy piece, proportion air -vent valve, pneumatic booster pump, filling valve, workstation, test pressure show, oil drain valve, air supply trigeminy piece is through defeated oil pipe and proportional valve regulating valve connected, the proportion air -vent valve is connected with pneumatic booster pump through defeated oil pipe, pneumatic booster pump is connected with the filling valve through defeated oil pipe, the filling valve is connected with the workstation through defeated oil pipe, the workstation is connected with oil drain valve through defeated oil pipe, the test pressure table is installed on the defeated oil pipe who connects workstation and oil drain valve, at least, be equipped with three experimental interface on the workstation, experimental interface and the defeated oil pipe intercommunication of being connected filling valve, oil drain valve. High pressure fuel pipe seal tightness test device turns into fluid pressure with gas pressure, obtains to be higher than the test pressure who obtains far away among the prior art from this, provides enough high pressure for high pressure fuel pipe's wiper seal is experimental.
Description
Technical field
This utility model relates to a kind of high-pressure oil pipe leak tightness test device.
Background technology
High-pressure oil pipe is to connect a kind of parts between fuel injector, high-pressure common rail rail, high-pressure oil pump, is bavin
A kind of important spare part on oil machine, gasoline engine, is widely used in boats and ships, automobile and other industries.Along with China
Progressively becoming boats and ships power and automobile superpower, the demand of high-pressure oil pipe is also constantly being amplified.High-pressure oil pipe
Operating pressure is the highest, and therefore high-pressure oil pipe easily occurs the faults such as leakage.In addition set to adapt to diesel engine
The requirement that meter index improves constantly, high-pressure oil pipe will be through pressure integrity test before dispatching from the factory, test pressure one
As be more than 1.5 times of high-pressure oil pipe operating pressure, it is qualified to be only only by the high-pressure oil pipe of pressure test
Product.Owing to the actual working pressure of present high-pressure oil pipe has reached 200MPa, and existing test is pressed
Power typically only has 30-50MPa, therefore, it is impossible to meet the hydraulic oil of more than common rail system operating pressure 200MPa
The test of pipe needs.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of hydraulic oil that can produce more high test pressures
Composite pipe tightness assay device.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that this high-pressure oil pipe sealing
Assay device includes source of the gas three linked piece, proportional dump valve, Pneumatic booster pump, inlet valve, workbench, test
Pressure gauge, gate gurgle valve, described source of the gas three linked piece is connected with proportioning valve pressure regulator valve by petroleum pipeline, described ratio
Pressure regulator valve is connected with Pneumatic booster pump by petroleum pipeline, and described Pneumatic booster pump is by petroleum pipeline with inlet valve even
Connecing, described inlet valve is connected with workbench by petroleum pipeline, and described workbench is by petroleum pipeline with gate gurgle valve even
Connecing, described test gauge is arranged on the petroleum pipeline of connecting working table and gate gurgle valve, and described workbench is up to
It is provided with three test interfaces, described test interface and the petroleum pipeline connection being connected inlet valve, gate gurgle valve less.
Become the potential energy of liquid by the potential energy of reformed gas, therefrom obtain bigger pressure, thus be high pressure
The seal tightness test of oil pipe provides the pressure more than 50MPa, reaches to obtain the pressure of at least 300MPa.
Preferably described high-pressure oil pipe leak tightness test device also includes boost gauge as of the present utility model,
Described boost gauge is arranged on the petroleum pipeline connecting proportional dump valve and Pneumatic booster pump.Boost gauge
For observing gas pressure, in order to obtain power source size in time.
In order to be able to mate high-pressure oil pipe, as of the present utility model preferably, described workbench is at test interface
It is provided with external screw thread.Thus can directly utilize the nut carried on high-pressure oil pipe to be connected with experimental interface, enter
And improve the convenience of operation.
This utility model uses technique scheme: gas pressure is converted by high-pressure oil pipe leak tightness test device
For fluid pressure, it is derived from significantly larger than prior art the test pressure obtained, for the pressure of high-pressure oil pipe
Power leakage test provides sufficiently high pressure.
Accompanying drawing explanation
With detailed description of the invention, this utility model is further described in detail below in conjunction with the accompanying drawings.
Fig. 1 structural representation of the present utility model.
Detailed description of the invention
As it is shown in figure 1, this high-pressure oil pipe leak tightness test device include source of the gas three linked piece 1, proportional dump valve 4,
Boost gauge 5, Pneumatic booster pump 6, inlet valve 7, workbench 8, test gauge 9, gate gurgle valve 3,
Source of the gas three linked piece 1 is connected with proportioning valve pressure regulator valve by petroleum pipeline, and proportional dump valve 4 is by petroleum pipeline and gas
Dynamic booster pump 6 connects, and boost gauge 5 is arranged on and connects the defeated of proportional dump valve 4 and Pneumatic booster pump 6
On oil pipe, Pneumatic booster pump 6 is connected with inlet valve 7 by petroleum pipeline, and inlet valve 7 is by petroleum pipeline and work
Station 8 connects, and workbench 8 is connected with gate gurgle valve 3 by petroleum pipeline, and test gauge 9 is arranged on connection
On the petroleum pipeline of workbench 8 and gate gurgle valve 3, three test interfaces 2 on workbench 8, described test interface 2
Be connected inlet valve 7, gate gurgle valve 3 petroleum pipeline connection, outside described workbench 8 is provided with at test interface 2
Screw thread.
During use, the high-pressure oil pipe of detection to be tested is arranged on test interface 2, test interface 2 sets
Having external screw thread, the female thread of the nut that this external screw thread carries with high-pressure oil pipe is corresponding, it is only necessary to by nut screwing clamping
Can be arranged on by high-pressure oil pipe on workbench 8 on test interface 2, the other end of high-pressure oil pipe is again with one
Individual it be provided with externally threaded sealing nut and tighten.Compressed-air actuated supply air line and source of the gas three linked piece 1 will be provided
Inlet end connects, and compressed air obtains purification filtering and reduced pressure treatment when source of the gas three linked piece 1, then presses
Contracting air is in ratio adjusting valve enters back into Pneumatic booster pump 6, and compressed air is also into entering in the process
In atmospheric pressure table 5, demonstrate compressed-air actuated atmospheric pressure value by boost gauge 5.Compressed-air actuated pressure
It is converted into fluid pressure in Pneumatic booster pump 6；Hereafter, need to open inlet valve 7 and gate gurgle valve 3 row
Bleed off the air on the pipeline between Pneumatic booster pump 6 to gate gurgle valve 3, turn off gate gurgle valve 3 and make
Hydraulic oil in Pneumatic booster pump 6 enters in the high-pressure oil pipe of detection to be tested, and Pressure gauge 9 to be tested shows
After the pressure stability shown, close inlet valve 7, the pressure display situation of change of viewing test Pressure gauge 9, if
Within the time of test determination, no pressure display change, then the sealing of high-pressure oil pipe reaches requirement；If it is close
Feng Buyan, pressure shows and changes greatly.This high-pressure oil pipe leak tightness test device can produce more than 300MPa
Pressure.
Claims (3)
- null1. a high-pressure oil pipe leak tightness test device，It is characterized in that: this high-pressure oil pipe leak tightness test device includes source of the gas three linked piece (1)、Proportional dump valve (4)、Pneumatic booster pump (6)、Inlet valve (7)、Workbench (8)、Test gauge (9)、Gate gurgle valve (3)，Described source of the gas three linked piece (1) is connected with proportioning valve pressure regulator valve by petroleum pipeline，Described proportional dump valve (4) is connected with Pneumatic booster pump (6) by petroleum pipeline，Described Pneumatic booster pump (6) is connected with inlet valve (7) by petroleum pipeline，Described inlet valve (7) is connected with workbench (8) by petroleum pipeline，Described workbench (8) is connected with gate gurgle valve (3) by petroleum pipeline，Described test gauge (9) is arranged on the petroleum pipeline of connecting working table (8) and gate gurgle valve (3)，At least provided with three test interfaces (2) on described workbench (8)，Described test interface (2) be connected inlet valve (7)、The petroleum pipeline connection of gate gurgle valve (3).
- High-pressure oil pipe leak tightness test device the most according to claim 1, it is characterized in that: described high-pressure oil pipe leak tightness test device also includes that boost gauge (5), described boost gauge (5) are arranged on the petroleum pipeline connecting proportional dump valve (4) and Pneumatic booster pump (6).
- High-pressure oil pipe leak tightness test device the most according to claim 1, it is characterised in that: described workbench (8) is provided with external screw thread at test interface (2) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620115104.1U CN205506317U (en) | 2016-02-04 | 2016-02-04 | High pressure fuel pipe seal tightness test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620115104.1U CN205506317U (en) | 2016-02-04 | 2016-02-04 | High pressure fuel pipe seal tightness test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205506317U true CN205506317U (en) | 2016-08-24 |
Family
ID=56724055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620115104.1U Active CN205506317U (en) | 2016-02-04 | 2016-02-04 | High pressure fuel pipe seal tightness test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205506317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817079A (en) * | 2017-11-30 | 2018-03-20 | 贝兹维仪器(苏州)有限公司 | A kind of LWD tightness measuring devices suppressed automatically |
-
2016
- 2016-02-04 CN CN201620115104.1U patent/CN205506317U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817079A (en) * | 2017-11-30 | 2018-03-20 | 贝兹维仪器(苏州)有限公司 | A kind of LWD tightness measuring devices suppressed automatically |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |