Small size valve is dredged block apparatus online
Technical field
The utility model relates to offshore oilfield field of engineering technology, and specifically a kind of small size valve is dredged block apparatus online.
Background technique
Valve blockage is common problem during reality is produced, and is also very important problem, and the process section little at caliber, valve size is little is particularly outstanding.Due to the obstruction of valve, easily cause the problems such as valve switch disabler, media flow are not smooth, pressure transient.After these problems occur, from explained hereafter, say and have potential safety hazard, easily cause because process parameter transmission misalignment, safety system false alarm etc. cause to produce and close down, cause economic loss.For all the more so the valve being directly connected with pipeline, because upstream does not have separating valve, needed for repair and replacemently can only close down in production, carry out after pressure release, need to spend a large amount of manpower and financial resources.
It is CN103115183A that State Intellectual Property Office discloses publication number on May 22nd, 2013, and patent name is the Patent Application Publication of the stifled electric valve of automatic sparse, and it comprises: valve body and electric actuator.Electric actuator comprises: direct current generator, automatic valve opening device, when its ABAP Adapter deficiency at electric valve thinks that direct current generator provides electric power, the direction action that valve body is opened to electric valve, with PTC resettable fuse, it is serially connected in after the input end of ABAP Adapter of described electric valve, before described electric actuator, when direct current generator is normally worked, PTC resettable fuse is in low resistive state, when direct current generator stall, PTC resettable fuse enters high-impedance state, automatic valve opening device starts so that described electric valve is carried out opens valve operation, PTC resettable fuse through recovering low resistive state after Recovery time afterwards, thereby ABAP Adapter conducting, described electric valve continues to carry out pass valve operation, described electric valve automatically repeats above-mentioned pass valve and opens valve operation one or many, finally realize the automatic removal of obstruction.
Above-mentioned patent documentation, although there is such or such advantage, the technological scheme of above-mentioned patent is completely different from the technological scheme of this patent.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of small size valve to dredge online block apparatus, and this device can be in the situation that not stopping oil gas conveying, and the valve of online dredge blockage with pressure, for continuous, stable production provides guarantee.
For achieving the above object, the technological scheme that the utility model adopts is:
Small size valve is dredged block apparatus online, it mainly consists of gas cylinder, pressure regulator valve I, atmospheric valve I, separating valve I, pressure gauge, separating valve II and thin plugging road, described separating valve I, pressure gauge, separating valve II, atmospheric valve I and pressure regulator valve I are serially connected in successively dredges on plugging road, the one end on described thin plugging road is connected with gas cylinder, and the other end is dredged stifled valve with quilt and is connected.
On described thin plugging road and the position between separating valve I and separating valve II is also provided with atmospheric valve II.
On described thin plugging road and the position between separating valve II and atmospheric valve I is also provided with pressure regulator valve II.
Described gas cylinder is high-pressure nitrogen bottle.
The maximum range of described pressure gauge, pressure regulator valve I and pressure regulator valve II is greater than the design pressure value of being dredged stifled valve.
The beneficial effects of the utility model: owing to adopting above-mentioned structural type, this device can be in the situation that not affecting normal production, valve function is cleaned out, recovered to the obstructions such as greasy filth that valve internal is overstocked, guarantee the normal work such as pressure transmitter that valve is connected, the impulse that elimination causes because of valve blockage is unstable or large with actual pressure deviation, and cause the Pressure testing instrument misoperation being connected to cause warning, even surprisingly close down; This device can be in the situation that not stopping oil gas conveying, and the valve of online dredge blockage with pressure keeps pressure transmission stable, eliminates the possibility of data transmission misalignment, for continuous, stable production provides guarantee.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model.
In figure: 1, gas cylinder; 2, pressure regulator valve I; 3, atmospheric valve I; 4, separating valve II; 5, pressure gauge; 6, separating valve I; 7, dredge plugging road; 8, dredged stifled valve; 9, atmospheric valve II; 10, pressure regulator valve II.
Embodiment
As shown in Figure 1, small size valve is dredged block apparatus online, it mainly consists of gas cylinder 1, pressure regulator valve I 2, atmospheric valve I 3, separating valve II 4, pressure gauge 5, separating valve I 6 and thin plugging road 7, described separating valve I 6, pressure gauge 5, separating valve II 4, atmospheric valve I 3 and pressure regulator valve I 2 are serially connected in successively dredges on plugging road 7, the one end on described thin plugging road 7 is connected with gas cylinder 1, and the other end is dredged stifled valve 8 with quilt and is connected.On described thin plugging the road 7 and position between separating valve I 6 and separating valve II 4 is also provided with atmospheric valve II 9.On described thin plugging the road 7 and position between separating valve II 4 and atmospheric valve I 3 is also provided with pressure regulator valve II 10.Described gas cylinder 1 is high-pressure nitrogen bottle.The maximum range of described pressure gauge 5, pressure regulator valve I 2 and pressure regulator valve II 10 is greater than the design pressure value of being dredged stifled valve 8.
The thin operation of blocking up of the present utility model: before enforcement, consult the design pressure of being dredged stifled valve 8, and the set point adjustment of the II of pressure regulator valve shown in Fig. 1 10 is extremely dredged to the numerical value of stifled valve design pressure a little less than quilt.
Shown in Fig. 1, to close and dredged stifled valve 8, the pressure inlet tube of the one end, downstream of dismantling, is being dredged the joint that connects suitable dimension on stifled valve, then connects upper small size valve and dredges online block apparatus.
Confirm that atmospheric valve I 3 and atmospheric valve II 9 are all in closed condition, conducting separating valve II 4, separating valve I 6 successively, open the switch of gas cylinder 1, slowly regulate pressure regulator valve I 2 moment to pay close attention to the reading of pressure gauge 5, when the reading of pressure gauge 5 equates with the force value of being dredged the production flow line at stifled valve 8 places, open and dredged stifled valve 8, continue to regulate pressure regulator valve I 2, make the reading of pressure gauge 5 continue to raise.When the pointer of pressure gauge 5 is having one obviously to beat sometime, illustrate and dredged stifled conducting of valve 8.
Close separating valve I 6 and dredged stifled valve 8, closing the switch of gas cylinder 1; Slowly open atmospheric valve I 3, by the pressure emptying of dredging in plugging road 7; Close separating valve II 4, open successively and dredged stifled valve 8 and separating valve I 6, observe pressure gauge 5 readings, the true pressure reading of comparison production pipeline, as both equate or approach, proving again is dredged stifled conducting of valve 8, and it is normal that valve function is recovered.
Close and dredged stifled valve 8, open atmospheric valve II 9, after emptying pressure, small size valve is dredged block apparatus online.
Give by thin stifled valve 8 and again load onto pressure inlet tube, set back, open and dredged stifled valve 8, recover the normal function of valve.
The above is preferred implementation of the present utility model; certainly can not limit with this interest field of the utility model; should be understood that; for those skilled in the art; the technical solution of the utility model is modified or is equal to replacement, do not depart from the protection domain of technical solutions of the utility model.