CN105954111A - Multifunctional liquid pressurizing device - Google Patents
Multifunctional liquid pressurizing device Download PDFInfo
- Publication number
- CN105954111A CN105954111A CN201610510508.5A CN201610510508A CN105954111A CN 105954111 A CN105954111 A CN 105954111A CN 201610510508 A CN201610510508 A CN 201610510508A CN 105954111 A CN105954111 A CN 105954111A
- Authority
- CN
- China
- Prior art keywords
- pressure
- low pressure
- cylinder body
- volumes
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
Abstract
The invention discloses a multifunctional liquid pressurizing device. The multifunctional liquid pressurizing device comprises a cylinder body which is connected with an equipment sealing head; two seals are arranged in the cylinder body to divide the cylinder body into two cavities which are communicated with each other; one is a high-pressure cavity, and the other one is a low-pressure cavity; the high-pressure cavity is connected with the equipment sealing head; the low-pressure cavity is communicated with a water inlet; a hydraulic cylinder is connected with the cylinder body through a fastening piece; a piston rod performs frontward and backward linear motion of extending and retracting in the direction of a connecting line of the low-pressure cavity and the high-pressure cavity under the drive of the hydraulic cylinder, so that the communicating and blocking of the low-pressure cavity and the high-pressure cavity and volume adjustment are realized; therefore, the functions of charging water, switching off, increasing pressure, maintaining pressure, unloading and the like are realized. The multifunctional liquid pressurizing device integrates multiple functions, and has the advantages of simple structure, convenience in control, flexibility in action, stability in unloading without impact, easiness in maintenance, high reliability and the like.
Description
Technical field
The invention belongs to steel pipe's production technical field, relate to steel pipe hydrostatic testing equipment, particularly to one
Full-service fluid pressue device.
Background technology
Steel pipe's production needs finished product is carried out pressure test, to determine that steel pipe bears internal liquid pressure
Ability.This is accomplished by steel duct is filled with test(ing) liquid, then manages liquid pressing, reaches to refer to
Constant-pressure also keeps a period of time to judge whether steel pipe leaks.
This equipment that steel pipe carries out pressure check is typically all completed by hydrostatic testing machine.The water pressure test
Machine must have a part of following necessity: first, and filling valve, filling valve will be by water pot or low-pressure pump
The big flow of water at atmospheric pressure come quickly is filled with in steel pipe, and after being full of, filling valve cuts out.Filling valve is typically by external force
Spool is promoted to complete.Second: pressue device, after steel duct is full of, pressue device is by steel duct
Water pressurization, until predetermined pressure after keep.The general high pressure major part that produces all uses supercharger to complete,
Supercharger is typically driven pressurized cylinder to complete by external force.3rd: unloader, will after pressure keeps
The pressure of steel duct is quickly laid down.The most commonly used unloader is substantially all employing switch valve by steel
Highly pressurised liquid within pipe is directly opened to flow out and is realized pressure reduction, and such unloading time is long, and impact is big,
Affect efficiency and rhythm of production.
Three above part is individually separated, and is not typically controlled by three driving means, and seal request is high, therefore
Barrier rate is the highest.And wanting mutual co-ordination, the most not only structure is complicated, and speed is slow, controls cost also
High.Additionally unloader is directly opened, and necessarily causes the highly pressurised liquid of steel duct to spray suddenly, to equipment
Form great impact, reduce equipment life and affect system stability.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of full-service fluid
Pressue device, can combine the function of three above part, it is achieved filling valve, supercharger,
Three kinds of functions such as unloader.
To achieve these goals, the technical solution used in the present invention is:
A kind of full-service fluid pressue device, including the cylinder body 1 being connected with equipment seal head, at cylinder body 1
Inside arranges and seals the cavity that cylinder body 1 is divided into two connections at two, and one is high-pressure chamber 2, another
Individual for low pressure volumes 6, high-pressure chamber 2 is connected with equipment seal head, and low pressure volumes 6 is with water inlet 5 even
Logical, hydraulic cylinder 9 is connected with cylinder body 1 by securing member 8, and piston rod 3 is held under the driving of hydraulic cylinder 9
Row moves along low pressure volumes 6 and stretching out of high-pressure chamber 2 line direction with retraction tandem, it is achieved low
The connecting of pressure cavity 6 and high-pressure chamber 2, blocking-up and volume adjustment.
Seal at described two and include being arranged on high-pressure chamber 2 and the high-pressure seal ring of low pressure volumes 6 connectivity part
4 and be arranged on low pressure volumes 6 and be in communication with the outside the low pressure seal circle 7 at place, high-pressure seal ring 4 and low densification
Seal 7 is positioned on same axis, and piston rod 3 passes along high-pressure seal ring 4 and low pressure seal circle 7 position
High-pressure chamber 2 and low pressure volumes 6.Described low pressure seal circle 7 is in close contact with piston rod 3 all the time.
The tail end of described piston rod 3 is connected with hydraulic cylinder 9, and when seesawing, head end initially passes through low pressure chamber
Body 6, is then passed through high-pressure chamber 2.
Described water inlet 5 is connected with low pressure water source, and high-pressure chamber 2 directly connects with hydrostatic testing machine seal head
Connect.High-pressure section other extra pipeline useless, does not has intermediate link, and supercharging is rapid, pulses little；High
Means of press seals only has at one, and leakage link is few, and reliability is high.
Compared with prior art, the present invention has water-filling, supercharging, three kinds of functions of off-load, has structure letter
Single, easy to control, flexible movements, off-load steadily, be easily maintained and high reliability.
Accompanying drawing explanation
Fig. 1 is present invention schematic diagram when being in unloaded position.
Fig. 2 is that the present invention is in into schematic diagram during water position.
Fig. 3 is that the present invention is in into schematic diagram when water closedown or off-load.
Fig. 4 is present invention schematic diagram when being in supercharging.
Detailed description of the invention
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings with embodiment.
Referring to the drawings 1,2,3,4, one full-service fluid pressue device of the present invention, including cylinder body 1,
Have inside cylinder body 1 at two and seal, be high-pressure seal ring 4 at one, for high pressure sealing, at another be
Low pressure seal circle 7 is for low pressure seal.Sealing and cylinder body is divided into two cavitys, one is high-pressure chamber 2,
Another one is low pressure volumes 6.Hydraulic cylinder 9 is connected with cylinder body 1 by securing member 8.Piston rod 3 exists
Can realize under the driving of hydraulic cylinder 9 stretching out seesawing with retraction.Low pressure volumes 6 is straight with water inlet 5
Meet UNICOM.Cylinder body 1 is directly connected with equipment (i.e. hydrostatic testing machine) seal head.
The operation principle of the present invention is:
1, with reference to Fig. 2, now piston rod 3 is retracted into rear extreme position, such low pressure volumes 6 and high pressure
Cavity 2 communicates, and low setting-out directly enters high-pressure chamber 2 by low pressure volumes 6 from water inlet 5, logical
Cross in high-pressure chamber 2 access arrangement in underproof steel pipe.Realize quickly being full of water for steel pipe.Low densification
Seal 7 is in close contact with piston rod 3 all the time, it is ensured that low setting-out will not leak.
2, with reference to Fig. 3, after in steel pipe, water is filled, hydraulic cylinder 9 drives piston rod 3 to forward extend out；
Through high-pressure seal ring 4, being blocked with high-pressure chamber 2 by the low pressure volumes 6 at water inlet, two chambeies separate,
Realize the effect that water intaking valve is closed.
3, with reference to Fig. 4, when two cavitys are spaced, after i.e. water intaking valve is closed, hydraulic cylinder 9 drives piston
Bar 3 continues to forward extend out, and the volume in high-pressure chamber 2 reduces, and the water of the inside is compressed, thus causes
Pressure raises, and thus realizes function of increasing pressure.High-pressure seal ring 4 ensures the high pressure within high-pressure chamber 2
Water will not leak in low pressure chamber 2.After overpressure reaches setting value, hydraulic cylinder 9 halts,
Overpressure is maintained, it is achieved pressure holding function.
4, with reference to Fig. 1, after pressurize terminates, hydraulic cylinder 9 drives piston rod 3 to retreat, at this time high pressure chest
Body 2 internal capacity increases, and the hydraulic pressure of the inside decreases, time until returning to the position shown in Fig. 3,
Hydraulic pressure in steel pipe is reduced to zero.Thus achieve the most stable Unloading Effect.Avoid regular tap
Water under high pressure is directly sprayed the impact caused by formula unloader.
Claims (5)
1. a full-service fluid pressue device, including the cylinder body (1) being connected with equipment seal head, its
It is characterised by, arranges in cylinder body (1) inside and at two, seal the cavitys that cylinder body (1) is divided into two connections,
One is high-pressure chamber (2), and another is low pressure volumes (6), and high-pressure chamber (2) seals with equipment
Head connects, and low pressure volumes (6) connects with water inlet (5), and hydraulic cylinder (9) passes through securing member (8)
Being connected with cylinder body (1), piston rod (3) performs along low pressure volumes (6) under the driving of hydraulic cylinder (9)
Move with retraction tandem with stretching out of high-pressure chamber (2) line direction, it is achieved low pressure volumes (6)
With the connecting of high-pressure chamber (2), blocking-up and volume adjustment.
Full-service fluid pressue device the most according to claim 1, it is characterised in that close at described two
Package includes and is arranged on the high-pressure seal ring (4) of high-pressure chamber (2) and low pressure volumes (6) connectivity part and sets
Put the low pressure seal circle (7) being in communication with the outside place at low pressure volumes (6), high-pressure seal ring (4) and low
Pressure seal ring (7) is positioned on same axis, and piston rod (3) is along high-pressure seal ring (4) and low pressure seal
Circle (7) position is through high-pressure chamber (2) and low pressure volumes (6).
Full-service fluid pressue device the most according to claim 2, it is characterised in that described low densification
Seal (7) is in close contact with piston rod (3) all the time.
Full-service fluid pressue device the most according to claim 1, it is characterised in that described piston rod
(3) tail end is connected with hydraulic cylinder (9), and when seesawing, head end initially passes through low pressure volumes (6),
It is then passed through high-pressure chamber (2).
Full-service fluid pressue device the most according to claim 1, it is characterised in that described water inlet
(5) it is connected with low pressure water source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510508.5A CN105954111A (en) | 2016-07-01 | 2016-07-01 | Multifunctional liquid pressurizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510508.5A CN105954111A (en) | 2016-07-01 | 2016-07-01 | Multifunctional liquid pressurizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105954111A true CN105954111A (en) | 2016-09-21 |
Family
ID=56902613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610510508.5A Pending CN105954111A (en) | 2016-07-01 | 2016-07-01 | Multifunctional liquid pressurizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105954111A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394122A (en) * | 2018-05-10 | 2018-08-14 | 福建闽航电子有限公司 | The quiet laminating machine such as a kind of |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1019010A (en) * | 1996-05-03 | 1998-01-20 | Masabumi Isobe | Cylinder device with boosting mechanism operating through pressure change |
| JP2000199501A (en) * | 1998-10-31 | 2000-07-18 | Masabumi Isobe | Cylinder device with pressure intensifying mechanism operating according to increase in pressure |
| CN2491822Y (en) * | 2001-08-28 | 2002-05-15 | 机械工业部西安重型机械研究所 | Water filling head appts. for pressure test |
| CN201184291Y (en) * | 2008-03-31 | 2009-01-21 | 邱长春 | Slurry pump with improved safety device |
| CN202140585U (en) * | 2011-06-10 | 2012-02-08 | 青岛昊坤机械制造有限公司 | Hydraulic press water-filled valve |
| CN102996535A (en) * | 2012-12-20 | 2013-03-27 | 丰士俊 | Pressure testing hydraulic-pressurizing device |
| CN103206418A (en) * | 2013-03-25 | 2013-07-17 | 青岛山海科技有限公司 | Double-acting pressurizer special for water pressure testing machine for steel pipes |
| CN104100581A (en) * | 2014-07-31 | 2014-10-15 | 巴鲁军 | Pressurizing cylinder and pressure test pressurizing device |
| CN205808843U (en) * | 2016-07-01 | 2016-12-14 | 中国重型机械研究院股份公司 | A kind of Multifunctional pressurizing device |
-
2016
- 2016-07-01 CN CN201610510508.5A patent/CN105954111A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1019010A (en) * | 1996-05-03 | 1998-01-20 | Masabumi Isobe | Cylinder device with boosting mechanism operating through pressure change |
| JP2000199501A (en) * | 1998-10-31 | 2000-07-18 | Masabumi Isobe | Cylinder device with pressure intensifying mechanism operating according to increase in pressure |
| CN2491822Y (en) * | 2001-08-28 | 2002-05-15 | 机械工业部西安重型机械研究所 | Water filling head appts. for pressure test |
| CN201184291Y (en) * | 2008-03-31 | 2009-01-21 | 邱长春 | Slurry pump with improved safety device |
| CN202140585U (en) * | 2011-06-10 | 2012-02-08 | 青岛昊坤机械制造有限公司 | Hydraulic press water-filled valve |
| CN102996535A (en) * | 2012-12-20 | 2013-03-27 | 丰士俊 | Pressure testing hydraulic-pressurizing device |
| CN103206418A (en) * | 2013-03-25 | 2013-07-17 | 青岛山海科技有限公司 | Double-acting pressurizer special for water pressure testing machine for steel pipes |
| CN104100581A (en) * | 2014-07-31 | 2014-10-15 | 巴鲁军 | Pressurizing cylinder and pressure test pressurizing device |
| CN205808843U (en) * | 2016-07-01 | 2016-12-14 | 中国重型机械研究院股份公司 | A kind of Multifunctional pressurizing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394122A (en) * | 2018-05-10 | 2018-08-14 | 福建闽航电子有限公司 | The quiet laminating machine such as a kind of |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160921 |
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| RJ01 | Rejection of invention patent application after publication |