CN208237179U - Underwater valve opening and closing balancing device - Google Patents
Underwater valve opening and closing balancing device Download PDFInfo
- Publication number
- CN208237179U CN208237179U CN201820767435.2U CN201820767435U CN208237179U CN 208237179 U CN208237179 U CN 208237179U CN 201820767435 U CN201820767435 U CN 201820767435U CN 208237179 U CN208237179 U CN 208237179U
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- balancing device
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- cylinder cap
- cylinder
- piston
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Abstract
The utility model relates to a kind of underwater valve opening and closing balancing device, balancing device is connected to by oil pipe with the rack bore of flat gate valve；The balancing device includes gray iron, piston and the cylindrical spring being arranged between piston and cylinder cap, and the cylinder cap is mounted on the upper end of cylinder body by fastener, and sealing ring is equipped between the cylinder body and cylinder cap；The upper end of the cylinder cap is connected with the top connection being connected to surrounding medium；Hydraulic oil medium is full of in the lower section cylinder body of the piston；It is equipped with lower contact in the lower end of cylinder body, the lower contact is connected to by oil pipe with rack bore.Balancing device can not only make Direct Travel opening/shutting valve upper operating system external and internal pressure be balanced the purpose for playing protection equipment, and the reduction of product open and close torque can also be made by pressure balance principle.Making valve by compensating cylinder inner elastomeric element preload function, pressurising prevents external seawater corrosion-damaged into causing inside operating system under non-open/close states.
Description
Technical field
The utility model belongs to underwater valve technology field, more particularly to a kind of underwater valve opening and closing balancing device.
Background technique
After petrol resources exploitation is redirected into the 1980s from land, underwater key equipment such as seabed clustered well heads,
Dry type, wet-type christmas tree, more well casings converge, and seabed metering device etc. is developed, the innovation skill such as underwater pressurization, underwater oil vapor treatment
Art steps into field test and industrial applications stage, and underwater remote-control Work robot operating water depth reaches 4000m, underwater oil
Gas field development mode becomes increasingly abundant, using the record fast refresh of the depth of water, subsea fields tieback distance.From several meters of the depth of water to number
Km, from marine large oil and gas fields to marginal field, from the North Sea, the Gulf of Mexico to Brazil so that China's eastern South China Sea all
There are many successful stories.The oil gas field depth of water of current application subsea production system exploitation is recorded as Gulf of Mexico Peidido
Mesh, maximum water depth 2943m；The full subsea production system development of fields of application and the seabed multiphase delivery pipe by 143km simultaneously
The direct tieback in road has become a reality in the gas field Norway Si Nuohei to land terminal.Subsea production system is with becoming economical and efficient
Develop one of the important technical in deep water hydrocarbon field and marine marginal field.
Petrol resources exploitation turns to ocean from land.Preceding sea turns to deep-sea and has become inexorable trend, Offshore Engineering equipment
As one of high-end equipment manufacture emphasis.Underwater gate valve is applied to adopt defeated well head and subsea production tree under water.It is used with traditional land
The environment of gate valve difference seawater is special, the corrosion such as seawater and the environmental pressure that generates with sea water advanced increase, right
Load performance, corrosion resistant performance, sealing performance, action performance, service life and maintenance period of deep-sea gate valve etc. have higher
Requirement.
Existing underwater flat gate valve generally directly drives, thus more demanding to external power source, to upper operating
System pressure-bearing it is more demanding, it is shorter using its service life for a long time, add after balancing device gate valve under water by analysis
Have the function of to drive compensation balance when opening and closing, balancing device can not only make external pressure in Direct Travel opening/shutting valve upper operating system
Power is balanced the purpose for playing protection equipment, and the reduction of product open and close torque can also be made by pressure balance principle.By flat
Weighing apparatus cylinder interior elastic element preload function makes valve, and pressurising prevents external seawater from entering inside operating system under non-open/close states
It causes corrosion-damaged.
Summary of the invention
The utility model is to solve technical problem present in well-known technique and provide a kind of with driving compensation balance function
Can, balancing device can not only be such that Direct Travel opening/shutting valve upper operating system external and internal pressure is balanced to play protection equipment
Purpose can also be such that product open and close torque reduces by pressure balance principle, prevent external seawater corrosion-damaged into causing
Underwater valve opening and closing balancing device.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique:
A kind of underwater valve opening and closing balancing device, balancing device are connected to by oil pipe with the rack bore of flat gate valve；
The balancing device includes gray iron, piston and the cylindrical spring being arranged between piston and cylinder cap, and the cylinder cap passes through
Fastener is mounted on the upper end of cylinder body, and sealing ring is equipped between the cylinder body and cylinder cap；The upper end of the cylinder cap is connected with
The top connection being connected to surrounding medium；Hydraulic oil medium is full of in the lower section cylinder body of the piston；It is equipped in the lower end of cylinder body
Lower contact, the lower contact are connected to by oil pipe with rack bore.
The utility model can also adopt the following technical scheme that
The outer circumference surface of the cylinder body, which is equipped with, reinforces opotism.
The lower surface of the cylinder cap and the upper surface of piston are equipped with cylindrical spring locating slot.
The utility model has the advantages and positive effects of: the utility model by adopting the above technical scheme, reduces starting
Torque reduces the requirement in the source inputted to torque, reduces the requirement to upper operating system pressure-bearing, it is ensured that tests and use the longevity
Life, the device have the function of driving compensation balance when gate valve opens and closes under water, balancing device can not only make Direct Travel open and close valve
Door upper operating system external and internal pressure is balanced the purpose for playing protection equipment, can also make product by pressure balance principle
Open and close torque reduces.Pre-tightening function by compensating cylinder inner elastomeric element fills valve inside operating system under non-open/close states
Pressure prevents external seawater corrosion-damaged into causing.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is A-A cross-sectional view in Fig. 1；
Fig. 3 is the utility model usage state diagram；
Fig. 4 is B-B cross-sectional view in Fig. 3.
In figure: 1, balancing device；1-1, cylinder body；1-2, cylinder cap；1-20, cylindrical spring locating slot；1-3, piston； 1-30,
Cylindrical spring locating slot；1-4, cylindrical spring；1-5, sealing ring；1-6, top connection；1-7, lower contact；2, flat gate valve；2-1,
Bracket；3, oil pipe.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing:
A kind of underwater valve opening and closing balancing device referring to FIG. 1 to FIG. 4, balancing device 1 pass through oil pipe 3 and Flat Sluice
The inner cavity bracket 2-1 of valve 2 is connected to；The balancing device 1 include cylinder body 1-1, cylinder cap 1-2, piston 1-3 and setting in piston and
Cylindrical spring 1-4, the cylinder cap 1-2 between cylinder cap are mounted on the upper end of cylinder body 1-1, the cylinder body 1-1 by fastener
Sealing ring 1-5 is equipped between cylinder cap 1-2；The upper end of the cylinder cap is connected with the top connection 1-6 being connected to surrounding medium；Institute
It states in the lower section cylinder body of piston full of hydraulic oil medium；It is equipped with lower contact 1-7 in the lower end of cylinder body 1-1, the lower contact is logical
Oil pipe 3 is crossed to be connected to 4 inner cavity of bracket.
In order to improve the bearing strength of cylinder body, the outer circumference surface of the cylinder body, which is equipped with, reinforces opotism 1-8.
In order to guarantee the uniform force of cylindrical spring, cylinder bullet is equipped in the lower surface of the cylinder cap and the upper surface of piston
Spring locating slot 1-20,1-30.
The balancing device of the utility model can not only be such that Direct Travel opening/shutting valve upper operating system external and internal pressure obtains
Balance plays the purpose of protection equipment, and the reduction of product open and close torque can also be made by pressure balance principle, is reduced defeated to torque
The requirement in the source entered reduces the requirement to upper operating system pressure-bearing, it is ensured that gate valve test and service life；Pass through cylinder interior
Elastic element pre-tighten function and make valve pressurising prevents from external seawater from entering causing corruption inside operating system under non-open/close states
Deteriorate evil.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (3)
1. a kind of underwater valve opening and closing balancing device, it is characterised in that: balancing device passes through the bracket of oil pipe and flat gate valve
Inner cavity connection；The balancing device includes gray iron, piston and the cylindrical spring being arranged between piston and cylinder cap, institute
The upper end that cylinder cap is mounted on cylinder body by fastener is stated, sealing ring is equipped between the cylinder body and cylinder cap；The cylinder cap it is upper
End is connected with the top connection being connected to surrounding medium；Hydraulic oil medium is full of in the lower section cylinder body of the piston；In cylinder body
Lower end is equipped with lower contact, and the lower contact is connected to by oil pipe with rack bore.
2. underwater valve opening and closing balancing device according to claim 1, it is characterised in that: the outer circumference surface of the cylinder body is set
There is reinforcement opotism.
3. underwater valve opening and closing balancing device according to claim 1, it is characterised in that: the lower surface of the cylinder cap and work
The upper surface of plug is equipped with cylindrical spring locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820767435.2U CN208237179U (en) | 2018-05-21 | 2018-05-21 | Underwater valve opening and closing balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820767435.2U CN208237179U (en) | 2018-05-21 | 2018-05-21 | Underwater valve opening and closing balancing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208237179U true CN208237179U (en) | 2018-12-14 |
Family
ID=64580316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820767435.2U Active CN208237179U (en) | 2018-05-21 | 2018-05-21 | Underwater valve opening and closing balancing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208237179U (en) |
-
2018
- 2018-05-21 CN CN201820767435.2U patent/CN208237179U/en active Active
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