CN106762917A - A kind of big flow explosion-proof valve and method of work - Google Patents
A kind of big flow explosion-proof valve and method of work Download PDFInfo
- Publication number
- CN106762917A CN106762917A CN201710140097.XA CN201710140097A CN106762917A CN 106762917 A CN106762917 A CN 106762917A CN 201710140097 A CN201710140097 A CN 201710140097A CN 106762917 A CN106762917 A CN 106762917A
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- China
- Prior art keywords
- valve
- fluid port
- hydraulic fluid
- oil
- valve element
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Classifications
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/023—Excess flow valves, e.g. for locking cylinders in case of hose burst
-
- 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
- F15B20/005—Leakage; Spillage; Hose burst
Abstract
A kind of big flow explosion-proof valve, including valve element, valve pocket, valve body, valve seat；Valve pocket is set in the valve body, and the valve seat is sleeved on valve pocket, valve pocket is set in the valve pocket, the valve element is placed in valve pocket；The valve body is provided with hydraulic fluid port A, hydraulic fluid port B；It is characterized in that：The valve element is set to inverse-T-shaped, and the inverse-T-shaped vertical section is cylinder, and cylindrical sides communicate with hydraulic fluid port B；The inverse-T-shaped lateral part is butterfly, and butterfly end communicates with hydraulic fluid port A；Lateral part described in this programme is butterfly, and butterfly end communicates with hydraulic fluid port A.The weight of valve element is reduced in this programme, valve port area of passage is increased, the valve port pressure loss is reduced.
Description
Technical field
The present invention relates to a kind of explosion-proof valve, especially a kind of big flow explosion-proof valve.
Background technology
When deep-sea drilling operation is carried out, semisubmersible drilling platform or floating barge need to be used.They under the wave action,
In addition to all around vacillating now to the left, now to the right, periodicity heave movement can be also produced, and drill string is pumped, if do not adopted
Indemnifying measure is taken, Bottom Hole Bit Weight In A will be caused to change, influence drilling, or even drill bit is departed from shaft bottom, it is impossible to creep into, so must be right
The heave movement of drill string takes indemnifying measure.
Drill string compensation is broadly divided into telescopic drill rod heave compensation, hook block heave compensation, overhead traveling crane heave compensation, winch liter
Heavy compensation, marine riser heave compensation etc., wherein telescopic drill rod heave compensation due to can not meet modern construction technique, gradually
It is eliminated.Other several heave compensators carry out final heave compensation motion using hydraulic cylinder, with tensile force it is big,
Simple structure, the characteristics of easy to maintain, reliability is high, it is widely used in newly-built the 5th generation, the 6th generation semi-submerged platform.
The heave compensation system of above-mentioned several use hydraulic cylinders, the pipeline of connection liquid cylinder pressure is due to the punching that is frequently under pressure
Hit, the influence of the factor such as mechanical oscillation, there is the risk of booster, once occurring, gently then damage drill bit, drilling rod, it is heavy then can cause to pacify
Full production accident.Therefore, it is necessary to take measures to be prevented, current way is to install explosion-proof additional at oil cylinder oil inlet mouth at present
Valve.And the explosion-proof valve applied in country's heave compensator at present, as shown in figure 3, there is the following aspect to need to improve：
1st, import is completely dependent on, not only purchase cost is high, and it is under one's control everywhere；
2nd, use cost is high, once break down, it is necessary to integral replacing；
3rd, performance parameter can not be adjusted, and system design is limited by valve, be unfavorable for performance system optimum performance；
4th, it is excessively heavy, it is not easy to install, safeguards.
The content of the invention
Technical problem solved by the invention is to provide a kind of big flow explosion-proof valve, by the modularization of autonomous innovation,
Densification, human oriented design, solve shortcoming present in background technology.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is as follows：
A kind of big flow explosion-proof valve, including valve element, valve pocket, valve body, valve seat；Valve pocket, the valve seat suit are set in the valve body
On valve pocket, valve pocket is set, the valve element is placed in valve pocket in the valve pocket；The valve body is provided with hydraulic fluid port A, hydraulic fluid port B；It is special
Levy and be：The valve element is set to inverse-T-shaped, and the inverse-T-shaped vertical section is cylinder, and cylindrical sides communicate with hydraulic fluid port B；
The inverse-T-shaped lateral part is butterfly, and butterfly end communicates with hydraulic fluid port A；Lateral part described in this programme is butterfly, butterfly end and oil
Mouth A is communicated.Compared to the valve element of overall cylinder, the weight of valve element is reduced, increase valve port area of passage, reduce valve port
The pressure loss.
Further：The valve seat is provided with the first aperture a1, the second orifice a2, the first aperture a1 on the valve body with
Second orifice a2 is connected；The valve body is provided with pressure tap MA, pressure tap MB, and the pressure tap MA is connected with second orifice a2,
Pressure tap MB is connected with the 3rd aperture b1.Pressure signalling generator can be connected at pressure tap MA and pressure tap MB, remote monitoring is realized.
Further：The inverse-T-shaped vertical section of valve element opens up the 4th aperture c, lateral part and opens up the 5th aperture c1,
The spring base is provided with the 6th aperture c2, and the 4th aperture c, the 5th aperture c1, the 6th aperture c2 are interconnected.
Further：The valve body top sets adjusting screw rod, cover plate, and the adjusting screw rod withstands valve element；The valve pocket
Interior order sets spring base, spring, adjusting gasket, and the valve pocket is nested in valve pocket, and withstands one end of spring, spring it is another
Withstood by spring base one end.The adjusting screw rod is threadedly attached in cover plate, and is locked by locking nut.By adjustment
Adjusting screw rod can change pre-set springs power and port size, to adapt to the demand of different heave compensators.
Further：Adjusting gasket is set between the valve element and spring base.By the quantity or thickness that change adjusting gasket
Degree, thus it is possible to vary the total length after valve element and spring base assembling.
Further：The valve element is cylindrical to set multiple annular grooves.Can change pre- by adjusting adjusting gasket quantity or thickness
If spring force and port size, to adapt to the demand of different heave compensators.
Further：The spring base top is provided with cross-like groove, by pressure communication at oil duct b to valve pocket d, acts on
Valve element upper end.
Further：The valve pocket top is provided with cross-like groove.
A kind of big flow explosion-proof valve, method of work is：When heave compensation system normal work, valve element is located at initial
Position, flows to oil duct b and hydraulic fluid port B connections and flows to oil cylinder from the hydraulic oil of hydraulic fluid port A inputs through oil duct a, meanwhile, hydraulic oil is through runner
B, the 5th aperture, the 4th aperture, the 6th aperture flow to valve pocket d, and pressure and spring-force driven dual are in valve element lower end, oil duct b at oil duct a
Pressure acts on valve element upper end at place and valve pocket d, from hydraulic fluid port A input hydraulic pressures oil when, influenceed by flow resistance, pressure is higher than at oil duct a
Pressure at oil duct b and at valve pocket d, spring-force driven dual in addition, valve element 6 remains static；Hydraulic oil from hydraulic fluid port B inputs is through b
Oil duct flows to a oil ducts and connects and flow out with hydraulic fluid port A, meanwhile, hydraulic oil is through runner b, the 5th aperture, the 4th aperture, the 6th aperture
Valve pocket d is flowed to, pressure is acted on valve element at valve element lower end, oil duct b and at valve pocket d for pressure and spring-force driven dual at oil duct a
End, is influenceed by flow resistance, and pressure is higher than pressure at oil duct a at oil duct b and at valve pocket d, but under normal operating conditions, both differences
It is not enough to overcome default spring force, valve element is still in inactive state；When the pipeline for connecting hydraulic fluid port A bursts suddenly, in oil cylinder
Hydraulic oil increased suddenly by the flow that hydraulic fluid port B flows to hydraulic fluid port A, influenceed by flow resistance, now pressure at oil duct b and at valve pocket d
Increase with pressure difference value at oil duct a, make valve element 6 overcome spring-force driven dual to produce and move downward, until valve element is closed with valve seat, this
When oil duct b and oil duct a be cut off, hydraulic oil can not flow to hydraulic fluid port A by hydraulic fluid port B again in oil cylinder, and oil cylinder stop motion is realized preventing
Quick-fried function.
A kind of advantage of method of work of big flow explosion-proof valve to heave compensator is：
1st, when oil cylinder oil inlet rostrum so bursts, oil cylinder conducted oneself with dignity and load effect can uncontrolled sharp downward movement, this
When valve element overcome spring force rapid closing, prevent oil cylinder from continuing to move downward；
2 can change pre-set springs power and port size by adjusting adjusting screw rod, adjustment adjusting gasket quantity or thickness, to adapt to
The demand of different heave compensators；
Real-time working pressure at the detection of pressure measurement instrument or monitoring hydraulic fluid port A, hydraulic fluid port B can be installed as needed at 3 hydraulic fluid port MA, hydraulic fluid port MB
Power, supervisory control system running state.
Beneficial effect
1st, external monopolization is broken, it is no longer under one's control and substantially reduce purchase cost；
2nd, the valve seat of rapid wear, valve pocket etc. are designed using split, and integral replacing is no longer needed during failure, substantially reduce use cost；
3rd, General design, it is applied widely, be easy to mass production；
4th, modularized design, easy to process, compact conformation, be easily installed, safeguard.
Brief description of the drawings
Fig. 1 is big flow explosion-proof valve schematic diagram；
Fig. 2 is Figure 1A-A generalized sections；
Fig. 3 is existing import explosion-proof valve schematic diagram；
In figure：
1 adjusting screw rod, 2 cover plates, 3 spring bases, 4 springs, 5 adjusting gaskets, 6 valve elements, 7, valve pocket, 8 valve bodies, 9 plugs, 10 valve seats,
It is 11 valve seat fixing screws, 12 locking nuts, 13 hydraulic fluid port A, 14 hydraulic fluid port B, 15 hydraulic fluid port MA, 16 hydraulic fluid port MB, the first aperture a1, second small
Hole a2, the 3rd aperture b1, the 4th aperture c, the 5th aperture c1, the 6th aperture c2.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Embodiment 1：
As shown in Figure 1, 2, a kind of big flow explosion-proof valve, including adjusting screw rod 1, cover plate 2, spring base 3, spring 4, adjusting gasket 5,
Valve element 6, valve pocket 7, valve body 8, plug 9, valve seat 10, valve seat fixing screws 11, locking nut 12；Shown valve body 8 is provided with hydraulic fluid port
A, hydraulic fluid port B, hydraulic fluid port MA and hydraulic fluid port MB；Be provided with shown valve body 8 spring base 3, spring 4, adjusting gasket 5, valve pocket 7, valve element 6,
Valve seat 10, valve seat fixing screws 11, and from top to bottom set gradually.Valve pocket, shown spring base 3, spring are set in shown valve body 8
4th, adjusting gasket 5, valve pocket 7, valve element 6, valve seat 10 are within valve pocket；Shown valve pocket 7 is nested on valve pocket, and withstands spring
4 one end, the other end of spring 4 is withstood by spring base 3；Shown valve element 6 is sleeved in valve pocket 7, and one end of valve element 6 passes through screw thread
Connected with spring base 3, the other end of valve element 6 sets plug 9, adjusting gasket 5 is set between valve element 6 and spring base 3；Shown valve seat 10
It is sleeved on valve pocket by valve seat fixing screws 11；Shown cover plate 2 is connected by screw and valve body 8, is placed in outside valve pocket, shown
Adjusting screw rod 1 is threadedly attached in cover plate 2, and is locked by locking nut 12.
Embodiment 2：
A kind of big flow explosion-proof valve, including valve element 6, valve pocket 7, valve body 8, valve seat 10；Valve pocket, the valve are set in the valve body 8
Seat 10 is sleeved on valve pocket, and valve pocket is set in the valve pocket, and the valve core housing is loaded in valve pocket；The valve body 8 is provided with 13 oil
Mouth A, 14 hydraulic fluid port B；It is characterized in that：The valve element 6 be set to it is inverse-T-shaped, the vertical section for cylinder, cylindrical sides with
Hydraulic fluid port B is communicated；The lateral part is butterfly, and butterfly end communicates with hydraulic fluid port A.Compared to the valve element of overall cylinder, valve is reduced
The weight of core, increases valve port area of passage, reduces the valve port pressure loss.
Embodiment 3：
A kind of big flow explosion-proof valve method of work is：When heave compensation system normal work, valve element 6 is located at initial position, from
The hydraulic oil of hydraulic fluid port A inputs flows to oil duct b and hydraulic fluid port B connections and flows to oil cylinder through oil duct a, meanwhile, hydraulic oil is through runner b, the 5th
Aperture c1, the 4th aperture c, the 6th aperture c2 flow to valve pocket d, and pressure and spring-force driven dual are in valve element lower end, oil duct b at oil duct a
Pressure acts on valve element upper end at place and valve pocket d, from hydraulic fluid port A input hydraulic pressures oil when, influenceed by flow resistance, pressure is higher than at oil duct a
Pressure at oil duct b and at valve pocket d, spring-force driven dual in addition, valve element 6 remains static；Hydraulic oil from hydraulic fluid port B inputs is through b
Oil duct flows to a oil ducts and connects and flow out with hydraulic fluid port A, meanwhile, hydraulic oil is through runner b, the 5th aperture c1, the 4th aperture c, the 6th small
Hole c2 flows to valve pocket d, and pressure acts on valve at valve element lower end, oil duct b and at valve pocket d for pressure and spring-force driven dual at oil duct a
Core upper end, is influenceed by flow resistance, and pressure is higher than pressure at oil duct a at oil duct b and at valve pocket d, but under normal operating conditions, both
Difference is not enough to overcome default spring force, and valve element is still in inactive state；When the pipeline for connecting hydraulic fluid port A bursts suddenly, oil
Hydraulic oil in cylinder is increased suddenly by the flow that hydraulic fluid port B flows to hydraulic fluid port A, is influenceed by flow resistance, now at oil duct b and at valve pocket d
Pressure difference value increase at pressure and oil duct a, makes valve element 6 overcome spring-force driven dual to produce and moves downward, until valve element 6 and valve seat 10
Closure, now oil duct b and oil duct a is cut-off, and hydraulic oil can not flow to hydraulic fluid port A by hydraulic fluid port B again in oil cylinder, and oil cylinder stops fortune
It is dynamic.
General principle of the invention and principal character and advantages of the present invention, the technology of the industry has been shown and described above
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (9)
1. a kind of big flow explosion-proof valve, including valve element（6）, valve pocket（7）, valve body（8）, valve seat（10）；The valve body（8）Interior setting
Valve pocket, the valve seat（10）It is sleeved on valve pocket, valve pocket is set in the valve pocket（7）, the valve element（6）It is placed in valve pocket（7）It is interior；
The valve body（8）It is provided with hydraulic fluid port A（13）, hydraulic fluid port B（14）；It is characterized in that：The valve element（6）Be set to it is inverse-T-shaped, it is described fall
"T"-shaped vertical section is cylinder, cylindrical sides and hydraulic fluid port B（14）Communicate；The inverse-T-shaped lateral part is butterfly, butterfly
End and hydraulic fluid port A（13）Communicate.
2. a kind of big flow explosion-proof valve as claimed in claim 1, it is characterised in that：The valve seat（10）It is provided with the first aperture
（a1）, the valve body（8）On second orifice（a2）, the first aperture（a1）With second orifice（a2）Connection；The valve body（8）On
It is provided with pressure tap（MA、MB）, the pressure tap（MA）With second orifice（a2）Connection, pressure tap（MB）With the 3rd aperture（b1）Even
It is logical.
3. a kind of big flow explosion-proof valve as claimed in claim 1, it is characterised in that：The valve element（6）Inverse-T-shaped vertical section
Open up the 4th aperture（c）, lateral part open up the 5th aperture（c1）, the spring base（3）It is provided with the 6th aperture（c2）, it is described small
Hole（c、c1、c2）It is interconnected.
4. a kind of big flow explosion-proof valve as claimed in claim 1, it is characterised in that：The valve body（8）Top sets regulation spiral shell
Bar（1）, cover plate（2）, the adjusting screw rod（1）Withstand valve element（6）；Order sets spring base in the valve pocket（3）, spring（4）、
Adjusting gasket（5）, the valve pocket（7）It is nested in valve pocket, and withstands spring（4）One end, spring（4）The other end by spring
Seat（3）Withstand.
5. a kind of big flow explosion-proof valve as claimed in claim 1, it is characterised in that：The valve element（6）And spring base（3）Between
Adjusting gasket is set（5）.
6. a kind of big flow explosion-proof valve as claimed in claim 1, it is characterised in that：The valve element（6）It is cylindrical to set multiple annulars
Groove.
7. a kind of big flow explosion-proof valve as claimed in claim 1, it is characterised in that：The spring base（3）Top is provided with cross
Shape groove.
8. a kind of big flow explosion-proof valve as claimed in claim 1, it is characterised in that：The valve pocket（7）Top is provided with cross
Groove.
9. a kind of big flow explosion-proof valve as claimed in claim 1, it is characterised in that：The big flow explosion-proof valve method of work
For：During normal work, valve element is located at initial position, and flowing to oil duct b and hydraulic fluid port B through oil duct a from the hydraulic oil of hydraulic fluid port A inputs connects
Flow to oil cylinder, meanwhile, hydraulic oil flows to valve pocket d through runner b, the 5th aperture, the 4th aperture, the 6th aperture, at oil duct a pressure and
Pressure acts on valve element upper end to spring-force driven dual at valve element lower end, oil duct b and at valve pocket d, from hydraulic fluid port A input hydraulic pressures oil when,
Influenceed by flow resistance, at oil duct a pressure higher than at oil duct b and valve pocket d places pressure, spring-force driven dual in addition, valve element is in static shape
State；Flow to a oil ducts through b oil ducts and connect and flow out with hydraulic fluid port A from the hydraulic oil of hydraulic fluid port B inputs, meanwhile, hydraulic oil is through runner b, the
Five apertures, the 4th aperture, the 6th aperture flow to valve pocket d, at oil duct a pressure and spring-force driven dual at valve element lower end, oil duct b and
Pressure acts on valve element upper end at valve pocket d, is influenceed by flow resistance, and pressure is higher than pressure at oil duct a at oil duct b and at valve pocket d, but
Under normal operating conditions, both differences are not enough to overcome default spring force, and valve element is still in inactive state；As connection hydraulic fluid port A
Pipelines from bursting when, in-oil cylinder hydraulic oil is increased suddenly by the flow that hydraulic fluid port B flows to hydraulic fluid port A, is influenceed by flow resistance, now oil
Pressure difference value increase at pressure and oil duct a, makes valve element overcome spring-force driven dual to produce and moves downward at road b and at valve pocket d, until
Valve element and valve seat are closed, and now oil duct b and oil duct a is cut off, and hydraulic oil can not flow to hydraulic fluid port A by hydraulic fluid port B again in oil cylinder, oil
Cylinder stop motion, realizes explosion prevention function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140097.XA CN106762917B (en) | 2017-03-10 | 2017-03-10 | A kind of big flow explosion-proof valve and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140097.XA CN106762917B (en) | 2017-03-10 | 2017-03-10 | A kind of big flow explosion-proof valve and working method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762917A true CN106762917A (en) | 2017-05-31 |
| CN106762917B CN106762917B (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710140097.XA Active CN106762917B (en) | 2017-03-10 | 2017-03-10 | A kind of big flow explosion-proof valve and working method |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060689A (en) * | 2017-06-02 | 2017-08-18 | 成都市卓新实业有限公司 | A kind of drilling rod is from grouting method |
| CN108679027A (en) * | 2018-08-03 | 2018-10-19 | 中船绿洲镇江船舶辅机有限公司 | A kind of overflow type hydraulic explosion-proof valve |
| CN113775599A (en) * | 2021-11-02 | 2021-12-10 | 杭州谦泰五金机械制造有限公司 | Temperature-reduction type explosion-proof early-warning hydraulic oil cylinder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060689A (en) * | 2017-06-02 | 2017-08-18 | 成都市卓新实业有限公司 | A kind of drilling rod is from grouting method |
| CN108679027A (en) * | 2018-08-03 | 2018-10-19 | 中船绿洲镇江船舶辅机有限公司 | A kind of overflow type hydraulic explosion-proof valve |
| CN113775599A (en) * | 2021-11-02 | 2021-12-10 | 杭州谦泰五金机械制造有限公司 | Temperature-reduction type explosion-proof early-warning hydraulic oil cylinder |
| CN113775599B (en) * | 2021-11-02 | 2022-06-10 | 杭州谦泰五金机械制造有限公司 | Temperature-reduction type explosion-proof early-warning hydraulic oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762917B (en) | 2018-09-18 |
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