CN108691850A - A kind of super-pressure pressure relief system - Google Patents
A kind of super-pressure pressure relief system Download PDFInfo
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- CN108691850A CN108691850A CN201810718284.6A CN201810718284A CN108691850A CN 108691850 A CN108691850 A CN 108691850A CN 201810718284 A CN201810718284 A CN 201810718284A CN 108691850 A CN108691850 A CN 108691850A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/007—Overload
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- Analytical Chemistry (AREA)
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- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of super-pressure pressure relief systems, cylinder pressure and pressure relief pipe are unloaded including double-acting piston, it includes cylinder barrel and piston that double-acting piston, which unloads cylinder pressure, the cylinder barrel includes the first pressure-releasing cavity and is separately positioned on the left and right sides of first pressure-releasing cavity, and second be connected to first pressure-releasing cavity, third pressure-releasing cavity, the diameter of first pressure-releasing cavity is more than described second, the diameter of third pressure-releasing cavity, the piston includes the first piston being arranged in first pressure-releasing cavity and is separately positioned on described second, two second pistons in third pressure-releasing cavity, the first piston is wholely set with the second piston;Pressure relief pipe includes ultrahigh pressure pipeline and pressure duct.Compared with prior art, of the invention, not only pressure release numerical value is controllable, rate is adjustable, but also can realize to the continuous pressure release of ultra-high pressure apparatus, has the advantages that easy to operate, Repetitive controller is with high accuracy.
Description
Technical field
The present invention relates to fluid transmission and pressure control fields, and in particular to a kind of super-pressure pressure relief system.
Background technology
Super-pressure pressure relief system is the important component of major compression test under super high device, and function is the ginseng according to system
Number index requests are with certain rate by system pressure drain charge.
Super-pressure pressure relief system generally forms a complete control pressurer system together with extra high pressure charging system.Mesh
Before, there are control pressurer system rate of pressurization and pressure release rate in more and more enterprises stringent parameter index requirement, that is, want
Ask that pressure release rate can and numerical value identical with rate of pressurization be controllable, rate is adjustable, to verify pressure-resistant feelings of the equipment under alternate stress
Condition.Existing super-pressure pressure relief system takes the mode release of pneumatic standard-sized sheet pressure-relief valve, the system pressure under which effect more
Normal pressure can be down in several seconds.Its decompression rate is effectively logical by extra high voltage system total measurement (volume), system working pressure, pressure relief pipeline
The composite factors such as diameter determine.After system is built up, decompression rate also has cured, and Unloading curve is almost a fixed slope song
Line.Decompression rate is about 30MPa/S, is much larger than the rate requirement of the practical 10MPa/min of engineering, and can not accurately control off-load
Pressure.In addition, there is a small number of pressure relief systems to carry out release by the way of manually controlling release valve opening.Pressure-relief valve is adjusted manually
Aperture:The case where naked eye visualization systems pressure declines is first passed through, then adjusts the aperture of pressure-relief valve manually according to fall off rate,
To achieve the purpose that system pressure slowly declines.Although which decompression rate is relatively adjustable, release can not be accurately controlled
Numerical value, and Unloading curve repeatability is extremely low.Obviously, both the above release mode cannot be satisfied system to pressure release controllable-rate,
The requirement of adjustability.
In view of this, being badly in need of being improved existing super-pressure pressure relief system, make it that there is controllability to decompression rate
And adjustability, and there is good repeatability.
Invention content
It is controllable the technical problem to be solved by the present invention is to not have to release existing for existing super-pressure pressure relief system
Property and adjustability, and repeatability difference problem.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is to provide a kind of super-pressure pressure relief system,
Including:
Double-acting piston unloads cylinder pressure, including cylinder barrel and piston, and the cylinder barrel includes the first pressure-releasing cavity and is separately positioned on
The left and right sides of first pressure-releasing cavity, and second, third pressure-releasing cavity being connected to first pressure-releasing cavity, first release
The diameter of chamber is more than the diameter of second, third pressure-releasing cavity, and the piston includes the be arranged in first pressure-releasing cavity
One piston and two second pistons being separately positioned in second, third described pressure-releasing cavity, the first piston and described second
Piston is wholely set;
Pressure relief pipe, including ultrahigh pressure pipeline and pressure duct, the ultrahigh pressure pipeline include:
First ultrahigh pressure pipeline, connects ultrahigh pressure vessel and second pressure-releasing cavity, and the first super high pressure bend road is set
There is the first Pneumatic valve;
Second ultrahigh pressure pipeline, connects ultrahigh pressure vessel and the third pressure-releasing cavity, and the second super high pressure bend road is set
There is the second Pneumatic valve;
Third ultrahigh pressure pipeline, connects water tank and second pressure-releasing cavity, and the third super high pressure bend road is equipped with third
Pneumatic valve;
4th ultrahigh pressure pipeline, connects water tank and the third pressure-releasing cavity, and the 4th super high pressure bend road is equipped with the 4th
Pneumatic valve;
The pressure duct includes:
First pressure duct, one end are connected with reversal valve, the other end and the institute for being located at the first piston left part
State the connection of the first pressure-releasing cavity;
Second pressure duct connects the reversal valve and first release positioned at the first piston right part
Chamber;
Third pressure duct, one end are connect with the reversal valve, and the other end is connected with water tank;
4th pressure duct connects water tank and the reversal valve.
In the above scheme, the reversal valve includes the first, second, and third working position, and first working position blocks institute
First, second, third and four pressure ducts are stated, second working position makes second pressure duct and the third high-voltage tube
Road connection, first pressure duct are connected to the 4th pressure duct, and the third working position makes second high-voltage tube
Road is connected to the 4th pressure duct, first pressure duct is connected to the third pressure duct.
In the above scheme, described first, third ultrahigh pressure pipeline passes through first pressure pipeline and second pressure-releasing cavity
Connection, described second, the 4th ultrahigh pressure pipeline connect with the third pressure-releasing cavity by second pressure pipeline, the first pressure
Pipeline is equipped with left pressure transmitter, and the second pressure pipeline is equipped with right pressure transmitter.
In the above scheme, the third pressure duct is equipped with force (forcing) pump and check valve.
In the above scheme, the third pressure duct is connected with the 5th pressure duct, the 5th pressure duct connection
Water tank, the 5th pressure duct are equipped with pump discharge pressure transmitter and overflow valve.
In the above scheme, the first, second super high pressure bend road is respectively equipped with the first check valve and the second check valve.
In the above scheme, first, second ultrahigh pressure pipeline passes through the 5th ultrahigh pressure pipeline and ultrahigh pressure vessel phase
Even, the 5th ultrahigh pressure pipeline is connected with the 6th ultrahigh pressure pipeline, and the 6th super high pressure bend road is equipped with manual relief valve.
In the above scheme, the first sealing ring and the second sealing are respectively equipped in the first piston and the second piston
Circle.
In the above scheme, the reversal valve is three-position four-way electromagnetic directional valve.
Compared with prior art, of the invention, not only pressure release numerical value is controllable, rate is adjustable, but also feasible system is continuously let out
Pressure, has the advantages that easy to operate, Repetitive controller is with high accuracy.
Description of the drawings
Fig. 1 is the schematic diagram of super-pressure pressure relief system of the present invention;
Fig. 2 is the structural schematic diagram that double-acting piston unloads cylinder pressure in the present invention;
Fig. 3 is the schematic diagram of original state before release of the present invention;
Fig. 4 is the schematic diagram of a release in the present invention;
Fig. 5 is the schematic diagram of secondary release in the present invention.
Specific implementation mode
The present invention does not have controllability for existing for the pressure relief system being used in the prior art to ultra-high pressure apparatus release
And adjustability, and repeatability difference problem provide a kind of super-pressure pressure relief system.With reference to the accompanying drawings of the specification and have
Body embodiment is described in detail the present invention.
As shown in Fig. 1~5, the present invention provides a kind of super-pressure pressure relief systems, including double-acting piston to unload cylinder pressure 10
And pressure relief pipe, moving left and right for 10 inner carrier 12 of cylinder pressure is unloaded by double-acting piston, it can be by the high pressure in ultra-high pressure apparatus
Medium is discharged by pressure relief pipe, and the present invention by adjusting the outlet pressure of force (forcing) pump 35, is accurately controlled to different ultra-high pressure
The decompression rate of system, and there is preferable stability, adjustability and repeatability simultaneously, it is high to the control accuracy of pressure.
It includes cylinder barrel 11 and piston 12 that double-acting piston, which unloads cylinder pressure 10, and cylinder barrel 11 includes the first pressure-releasing cavity 111 and difference
The second pressure-releasing cavity 112 and third pressure-releasing cavity 113 in the left and right sides of the first pressure-releasing cavity 111 be set, the first pressure-releasing cavity 111 connection the
The diameter of two pressure-releasing cavities 112 and third pressure-releasing cavity 113, the first pressure-releasing cavity 111 is more than the second pressure-releasing cavity 112 and third pressure-releasing cavity
113 diameter.
Piston 12 includes the first piston 121 being arranged in the first pressure-releasing cavity 111 and is separately positioned on the second pressure-releasing cavity 112
With two second pistons 122 in third pressure-releasing cavity 113, first piston 121 is wholely set namely first with second piston 122
Piston 121 and 122 synchronizing moving of second piston.The first sealing ring 1211 is respectively equipped on first piston 121 and second piston 122
With the second sealing ring 1221.Preferably, the first sealing ring 1211 and the second sealing ring 1221 are set as multiple.
Pressure relief pipe includes the ultrahigh pressure pipeline and pressure duct for being unloaded for ultra-high pressure apparatus.Wherein, ultrahigh pressure pipeline
Including:First ultrahigh pressure pipeline 21, connects ultrahigh pressure vessel 40 and the second pressure-releasing cavity 112, and the first super high pressure bend road 21 is equipped with
First Pneumatic valve 211;Second ultrahigh pressure pipeline 22 connects ultrahigh pressure vessel 40 and third pressure-releasing cavity 113, the second ultrahigh pressure pipeline
Upper 22 are equipped with the second Pneumatic valve 221;Third ultrahigh pressure pipeline 23 connects water tank 50 and the second pressure-releasing cavity 112, third super high pressure bend
Road 23 is equipped with third Pneumatic valve 231;4th ultrahigh pressure pipeline 24 connects water tank 40 and third pressure-releasing cavity 113, the 4th super-pressure
Pipeline 24 is equipped with the 4th Pneumatic valve 241.
It is respectively equipped with the first check valve 212 and the second check valve on first ultrahigh pressure pipeline 21 and the second ultrahigh pressure pipeline 22
222.First ultrahigh pressure pipeline 21, third ultrahigh pressure pipeline 23 are connected to by first pressure pipeline with the second pressure-releasing cavity 112, and second
Ultrahigh pressure pipeline 22, the 4th ultrahigh pressure pipeline 24 are connected to by second pressure pipeline with third pressure-releasing cavity 113, first pressure pipeline
With left pressure transmitter 25 and right pressure transmitter 26 are respectively equipped on second pressure pipeline, for showing that double-acting piston unloads
The pressure of 10 both sides of cylinder pressure.First ultrahigh pressure pipeline 21 and the second ultrahigh pressure pipeline 22 pass through the 5th ultrahigh pressure pipeline 27 and superelevation
Pressure vessel 40 is connected, and the 6th ultrahigh pressure pipeline 28 is connected on the 5th ultrahigh pressure pipeline 27, the 6th ultrahigh pressure pipeline 28 is equipped with
Manual relief valve 29.
Pressure duct includes:First pressure duct 31 connects reversal valve 60 and positioned at the of 121 left part of first piston
One pressure-releasing cavity 111;Second pressure duct 32 connects reversal valve 60 and the first pressure-releasing cavity positioned at 121 right part of first piston
111;Third pressure duct 33 connects reversal valve 60 and water tank 50;4th pressure duct 34 connects reversal valve 60 and water tank 50.
Third pressure duct 33 is equipped with force (forcing) pump 35 and check valve 36.Third pressure duct 33 is connected with the 5th high-voltage tube
Road 37,37 joining water box 50 of the 5th pressure duct, the 5th pressure duct 37 are equipped with pump discharge pressure transmitter 38 and overflow valve
39。
Reversal valve 60 is three-position four-way electromagnetic directional valve, including the first, second, and third working position, and the first working position blocks
First pressure duct 31, the second pressure duct 32, third pressure duct 33 and four pressure ducts 34;Second working position makes
Two pressure ducts 32 are connected to third pressure duct 33, the first pressure duct 31 is connected to the 4th pressure duct 34;Third works
Position makes that the second pressure duct 32 is connected to the 4th pressure duct 34, the first pressure duct 31 is connected to third pressure duct 33.
The operation principle of super-pressure pressure relief system provided by the invention is:
By force (forcing) pump 35 and reversal valve 60 into the first pressure-releasing cavity 111, the side of first piston 121 is pressurizeed, by the
One Pneumatic valve 211 and the second Pneumatic valve 221 pressurize to the second pressure-releasing cavity 112 or third pressure-releasing cavity 113, and piston 12 or so is made to move
It is dynamic, high-pressure medium is drained to water tank 50 by third ultrahigh pressure pipeline 23 or the 4th ultrahigh pressure pipeline 24, is achieved in release.
Wherein, force (forcing) pump 35 is respectively P to the pressure of 121 left and right sides of first piston2And P3, first piston 121 or so two
Side Vertical Compression area is respectively S2And S3, the pressure of the second pressure-releasing cavity of external ultra-high pressure apparatus pair 112 and third pressure-releasing cavity 113
Respectively P1And P4, it is located at the Vertical Compression of two second pistons 122 in the second pressure-releasing cavity 112 and third pressure-releasing cavity 113
Area is respectively S1And S4.The present invention includes the following steps the release of ultra-high pressure apparatus:
S1, required pressurization pump discharge pressure P is first calculatedPump;
PPump=P1×S1/S3
Prepare before S2, release:Before system acting, double-acting piston unloads cylinder pressure 10 and is located at middle position;Reversal valve 60 is located at the
One working position;First Pneumatic valve 211 and the second Pneumatic valve 221 are in open state;Third Pneumatic valve 231 and the 4th Pneumatic valve
241 are closed;
The exit pressure levels of force (forcing) pump 35 are PPump.At this point, double-acting piston unloads both ends and the ultra-high pressure apparatus of cylinder pressure 10
The pressure value that connection, i.e., left pressure transmitter 25 and right pressure transmitter 26 are shown is the ultra-high pressure apparatus being connect with the present invention
Pressure;
S2, the second Pneumatic valve 221 is closed, opens the 4th Pneumatic valve 241;
Reversal valve packet 60 fades to the second working position, at this point, the pressure that right pressure transmitter 26 is shown is 0, left pressure becomes
It is the pressure of ultra-high pressure apparatus to send the pressure that device 25 is shown, at this point, double-acting piston unloads the stressing conditions at 10 both ends of cylinder pressure such as
Under:
12 left side stress of piston is:F1=P1×S1;
12 right side stress of piston is:F2=P3×S3;
If at this point, F1=F2;System balancing;
Reduce pressure P3, make the outlet pressure for being more than force (forcing) pump 30 to the thrust of piston 12 to the right of ultra-high pressure apparatus generation
The thrust to piston 12 to the left generated, even if F2<F1;
At this point, piston 12 moves right, make the high-pressure medium in third pressure-releasing cavity 113 and second pressure pipeline in double acting
Piston type unloads under the effect of cylinder pressure 10, passes through the excretion of the 4th ultrahigh pressure pipeline 24 to water tank 50;Meanwhile Jie in ultrahigh pressure vessel 40
Matter pressure reduces because volume becomes larger.
The decompression rate of the present invention depends on the movement speed of piston 12, under the outlet pressure effect of force (forcing) pump 35, unloads
Excessive impact will not be generated during pressure to piston 12, release is stablized;
When 12 left and right sides stress of piston is equal, at this point, completing a release;
When 12 left side stress of piston is equal to right side stress, piston 12 moves right to extreme position, at this point, two can be carried out
Secondary release.
S3, the 4th Pneumatic valve 241 is closed, opens the second Pneumatic valve 221, close the first Pneumatic valve 211, open third gas control
Valve 231;Reversal valve 60 is set to fade to the first working position;
At this point, the pressure that left pressure transmitter 25 is shown is 0, right pressure transmitter 26 is shown as the pressure of ultra-high pressure apparatus
Power;
Reversal valve 60 is set to fade to third working position, at this point, double-acting piston unloads the stressing conditions at 10 both ends of cylinder pressure such as
Under:
12 left side stress of piston is:F3=P2×S2;
12 right side stress of piston is:F4=P4×S4;
At this point, ultra-high pressure apparatus is more than the outlet pressure of force (forcing) pump 30 to piston 12 to the thrust to the left that piston 12 generates
The thrust to the right generated, i.e. F3<F4;
At this point, piston 12 moves downward, make the high-pressure medium of the second pressure-releasing cavity 112 and original first pressure pipeline in double cropping
It is unloaded under the effect of cylinder pressure 10 with piston type, is drained to water tank 50 by third ultrahigh pressure pipeline 23, meanwhile, in ultrahigh pressure vessel 40
Pressure medium reduces because volume becomes larger.
So far, secondary release is completed.When 12 left side stress of piston is equal to right side stress, piston 12 is moved to the left extremely
Extreme position a, at this point, release can be executed again.
S4, it is recycled according to primary, secondary release, until ultra-high pressure apparatus is equal to force (forcing) pump 15 to the thrust that piston 12 generates
Outlet pressure thrust that piston 12 is generated, at this point, ultra-high pressure apparatus is to pressing the pressure P of piston 121Or P4For pressure unloading;
S5, by reversal valve 60 fade to the first working position, system self-locking.
In above-mentioned primary, secondary stress-relief process, when piston 12 is moved to the left or right extreme position, first piston
121 squeeze cylinder barrel 11, offset the pressure of external ultra-high pressure apparatus.
More than, by once adjusting PPumpTo P2Or P3Realize repeatedly continuous release, in addition, during continuous release,
Adjustable PPumpSize, realize flexibly control.
The beneficial effects of the present invention are:
(1) pressure release numerical value is controllable:By being accurately controlled to pressurization pump discharge pressure, the final drain charge pressure of system is realized
It accurately controls;
(2) pressure release rate is adjustable:Pass through control pressurization pump discharge pressure and extra high voltage system pressure versus piston bar both sides institute
The thrust of generation is poor, carrys out the movement speed of regulating piston bar, realizes the adjusting of system decompression rate, and have preferable stability
And controllability;
(3) system repeatable accuracy is high:Under same technical parameter state, system Unloading curve can by the rate release of setting,
Repeatable accuracy is high.
In practical application, when system decompression rate is too fast, adds the appropriate outlet pressure for increasing force (forcing) pump 30, reduce system
The thrust that the pressure versus piston 12 of pressure and force (forcing) pump 30 generates is poor, and the movement speed by reducing piston 12 is unloaded to reach reduction
Press the purpose of rate.When system pressure and drain charge pressure are close, the outlet pressure of force (forcing) pump 30 is being adjusted to setting value, it is ensured that
When the both ends of piston 12 balance, system pressure is drain charge pressure.In addition, in the case of close, manually opened manual relief valve 29,
The quick drain charge of system can be realized to normal pressure, safety guarantee is provided for system.
One group of specific embodiment is given below:
The volume 200L of ultra-high pressure apparatus, operating pressure 250MPa, rate of pressure rise 10MPa/min, pressure release value are
50MPa, it is desirable that pressure release rate is 10MPa/min, and it is 3.2mm that super high pressure bend, which corresponds to latus rectum, and system drain charge volume is 18.8L.Cylinder
11 the second pressure-releasing cavity 112 of cylinder and a diameter of 80mm of third pressure-releasing cavity 113, a diameter of 240mm of the first pressure-releasing cavity 111 are living
The journey of plug 12 is 300m, and one-stroke drain charge volume is 1.5L.The outlet pressure of force (forcing) pump 35 is 6.25MPa.
Adjusting third Pneumatic valve 23 and the 4th Pneumatic valve 24 makes ultrahigh pressure pipeline circulation latus rectum to 0.36mm, piston 12
Due to pressure at both sides difference, left and right loopy moving, system decompression rate are about 10MPa/min.Piston is by 13 times or so actions
Afterwards, double-acting piston unload cylinder pressure 10 work 12 liang of side-thrusts of piston it is equal, piston 12 is static.At this point, extra high voltage system passes through
Double-acting piston unloads cylinder pressure 10 and about 18.8L pressure mediums is discharged, and system pressure is down to 50MPa, and release is completed.
Compared with prior art, of the invention, not only pressure release numerical value is controllable, rate is adjustable, but also feasible system is continuously let out
Pressure, has the advantages that easy to operate, Repetitive controller is with high accuracy.
The invention is not limited in above-mentioned preferred forms, and anyone should learn that is made under the inspiration of the present invention
Structure change, the technical schemes that are same or similar to the present invention are each fallen within protection scope of the present invention.
Claims (9)
1. a kind of super-pressure pressure relief system, which is characterized in that including:
Double-acting piston unloads cylinder pressure, including cylinder barrel and piston, and the cylinder barrel includes the first pressure-releasing cavity and is separately positioned on described
The left and right sides of first pressure-releasing cavity, and second, third pressure-releasing cavity being connected to first pressure-releasing cavity, first pressure-releasing cavity
Diameter is more than the diameter of second, third pressure-releasing cavity, and the piston includes that first be arranged in first pressure-releasing cavity lives
Two second pistons filled in and be separately positioned in second, third described pressure-releasing cavity, the first piston and the second piston
It is wholely set;
Pressure relief pipe, including ultrahigh pressure pipeline and pressure duct, the ultrahigh pressure pipeline include:
First ultrahigh pressure pipeline, connects ultrahigh pressure vessel and second pressure-releasing cavity, and the first super high pressure bend road is equipped with the
One Pneumatic valve;
Second ultrahigh pressure pipeline, connects ultrahigh pressure vessel and the third pressure-releasing cavity, and the second super high pressure bend road is equipped with the
Two Pneumatic valves;
Third ultrahigh pressure pipeline, connects water tank and second pressure-releasing cavity, and the third super high pressure bend road is equipped with third gas control
Valve;
4th ultrahigh pressure pipeline, connects water tank and the third pressure-releasing cavity, and the 4th super high pressure bend road is equipped with the 4th gas control
Valve;
The pressure duct includes:
First pressure duct, one end are connected with reversal valve, the other end with positioned at described the of the first piston left part
One pressure-releasing cavity connects;
Second pressure duct connects the reversal valve and first pressure-releasing cavity positioned at the first piston right part;
Third pressure duct, one end are connect with the reversal valve, and the other end is connected with water tank;
4th pressure duct connects water tank and the reversal valve.
2. a kind of super-pressure pressure relief system according to claim 1, which is characterized in that the reversal valve includes first, the
Two and third working position, first working position blocks described first, second, third and four pressure ducts, second work
Position makes second pressure duct be connected to the third pressure duct, first pressure duct and the 4th pressure duct
Connection, the third working position makes second pressure duct be connected to the 4th pressure duct, first pressure duct
It is connected to the third pressure duct.
3. a kind of super-pressure pressure relief system according to claim 1, which is characterized in that described first, third super high pressure bend
Road is connect by first pressure pipeline with second pressure-releasing cavity, described second, the 4th ultrahigh pressure pipeline pass through second pressure pipe
Road is connect with the third pressure-releasing cavity, and the first pressure pipeline is equipped with left pressure transmitter, on the second pressure pipeline
Equipped with right pressure transmitter.
4. a kind of super-pressure pressure relief system according to claim 1, which is characterized in that the third pressure duct is equipped with
Force (forcing) pump and check valve.
5. a kind of super-pressure pressure relief system according to claim 1, which is characterized in that the third pressure duct is connected with
5th pressure duct, the 5th pressure duct joining water box, the 5th pressure duct are equipped with pump discharge pressure transmitter
And overflow valve.
6. a kind of super-pressure pressure relief system according to claim 1, which is characterized in that first, second super high pressure bend
Road is respectively equipped with the first check valve and the second check valve.
7. a kind of super-pressure pressure relief system according to claim 1, which is characterized in that first, second super high pressure bend
Road is connected by the 5th ultrahigh pressure pipeline with ultrahigh pressure vessel, and the 5th ultrahigh pressure pipeline is connected with the 6th ultrahigh pressure pipeline,
The 6th super high pressure bend road is equipped with manual relief valve.
8. a kind of super-pressure pressure relief system according to claim 1, which is characterized in that the first piston and described second
The first sealing ring and the second sealing ring are respectively equipped on piston.
9. a kind of super-pressure pressure relief system according to claim 1, which is characterized in that the reversal valve is 3-position 4-way electricity
Magnetic reversal valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718284.6A CN108691850B (en) | 2018-07-03 | 2018-07-03 | Ultrahigh pressure relief system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718284.6A CN108691850B (en) | 2018-07-03 | 2018-07-03 | Ultrahigh pressure relief system |
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| Publication Number | Publication Date |
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| CN108691850A true CN108691850A (en) | 2018-10-23 |
| CN108691850B CN108691850B (en) | 2019-12-24 |
Family
ID=63850331
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810718284.6A Active CN108691850B (en) | 2018-07-03 | 2018-07-03 | Ultrahigh pressure relief system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295538A (en) * | 2021-05-31 | 2021-08-24 | 山西互昇科技有限公司 | Pressure regulating method of hydrostatic testing machine |
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| CN107476915A (en) * | 2017-08-22 | 2017-12-15 | 哈尔滨工程大学 | A kind of double-acting type high pressure fuel feedway with buffer unit |
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|---|---|---|---|---|
| EP0959217A2 (en) * | 1998-05-22 | 1999-11-24 | Hoerbiger Hydraulik GmbH | Assembly for hydraulically operating a tailgate |
| JP2000097203A (en) * | 1998-09-22 | 2000-04-04 | Sugiyasu Kogyo Kk | Hydraulic synchronizing device and hydraulic lift |
| CN101235838A (en) * | 2008-02-25 | 2008-08-06 | 西南石油大学 | Blowout preventer manual hydraulic control locking apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295538A (en) * | 2021-05-31 | 2021-08-24 | 山西互昇科技有限公司 | Pressure regulating method of hydrostatic testing machine |
| CN113295538B (en) * | 2021-05-31 | 2024-04-02 | 山西互昇科技有限公司 | Pressure regulating method of hydrostatic testing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108691850B (en) | 2019-12-24 |
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