CN203880397U - Online dredging device for small-size valve - Google Patents

Online dredging device for small-size valve Download PDF

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Publication number
CN203880397U
CN203880397U CN201420303717.9U CN201420303717U CN203880397U CN 203880397 U CN203880397 U CN 203880397U CN 201420303717 U CN201420303717 U CN 201420303717U CN 203880397 U CN203880397 U CN 203880397U
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CN
China
Prior art keywords
valve
pressure
dredged
online
separating
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.)
Expired - Fee Related
Application number
CN201420303717.9U
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Chinese (zh)
Inventor
沈宏
张万兵
曾庆军
安海重
陈治新
刘建波
刘文山
王回绥
孙浩礼
袁春
刘永生
谢逢选
袁嘉乐
陈卫
杨亚涛
曾伟
金光智
熊永卫
刘平
兰明光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Offshore Oil Corp CNOOC
CNOOC China Ltd Zhanjiang Branch
Original Assignee
China National Offshore Oil Corp CNOOC
CNOOC China Ltd Zhanjiang Branch
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China National Offshore Oil Corp CNOOC, CNOOC China Ltd Zhanjiang Branch filed Critical China National Offshore Oil Corp CNOOC
Priority to CN201420303717.9U priority Critical patent/CN203880397U/en
Application granted granted Critical
Publication of CN203880397U publication Critical patent/CN203880397U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an online dredging device for a small-size valve. The online dredging device is mainly formed by a high pressure air bottle, a first pressure adjusting valve, a first emptying valve, a first insulating valve, a pressure meter, a second insulating valve and a dredging pipeline, wherein the first insulating valve, the pressure meter, the second insulating valve, the first emptying valve and the first pressure adjusting valve are sequentially in series connection to the dredging pipeline, one end of the dredging pipeline is connected with the high pressure air bottle, and the other end of the dredging pipeline is connected with a valve to be dredged. A second emptying valve and a second pressure adjusting valve are further arranged on the dredging pipeline. By means of the structure, the online dredging device can clean up plug articles like oil sludge accumulating in the valve and recovers functions of the valve in the situation without affecting normal production. Furthermore, normal work of a pressure transmitter connected with the valve can be guaranteed. When the valve is plugged to generate unstable pressure or large difference from the actual pressure, the situations of alarm caused by error operation of a pressure detecting instrument connected with the valve and accident shutdown of the pressure detecting instrument are caused. According to the online dredging device, the situations can be avoided.

Description

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.

Claims (5)

1. a small size valve is dredged block apparatus online, it is characterized in that: 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.
2. small size valve according to claim 1 is dredged block apparatus online, it is characterized in that: on described thin plugging road and the position between separating valve II and atmospheric valve I is also provided with pressure regulator valve II.
3. small size valve according to claim 2 is dredged block apparatus online, it is characterized in that: on described thin plugging road and the position between separating valve I and separating valve II is also provided with atmospheric valve II.
4. small size valve according to claim 3 is dredged block apparatus online, it is characterized in that: described gas cylinder is high-pressure nitrogen bottle.
5. small size valve according to claim 4 is dredged block apparatus online, it is characterized in that: 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.
CN201420303717.9U 2014-06-10 2014-06-10 Online dredging device for small-size valve Expired - Fee Related CN203880397U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420303717.9U CN203880397U (en) 2014-06-10 2014-06-10 Online dredging device for small-size valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420303717.9U CN203880397U (en) 2014-06-10 2014-06-10 Online dredging device for small-size valve

Publications (1)

Publication Number Publication Date
CN203880397U true CN203880397U (en) 2014-10-15

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CN201420303717.9U Expired - Fee Related CN203880397U (en) 2014-06-10 2014-06-10 Online dredging device for small-size valve

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019361A (en) * 2014-06-10 2014-09-03 中国海洋石油总公司 Online unclogging device for small-size valves
CN114769231A (en) * 2022-04-18 2022-07-22 安徽晋煤中能化工股份有限公司 Pipeline dredging device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019361A (en) * 2014-06-10 2014-09-03 中国海洋石油总公司 Online unclogging device for small-size valves
CN114769231A (en) * 2022-04-18 2022-07-22 安徽晋煤中能化工股份有限公司 Pipeline dredging device
CN114769231B (en) * 2022-04-18 2024-03-08 安徽晋煤中能化工股份有限公司 Pipeline dredging device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing

Co-patentee after: CNOOC (China) Limited Zhanjiang Branch

Patentee after: China Offshore Oil Group Co., Ltd.

Address before: 100010 China oil tower, 25 Chaoyangmen North Street, Dongcheng District, Beijing

Co-patentee before: CNOOC (China) Limited Zhanjiang Branch

Patentee before: China National Offshore Oil Corporation

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141015

Termination date: 20210610