IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0768009
(2001-01-24)
|
우선권정보 |
BR-PI 0000183 (2000-01-27) |
발명자
/ 주소 |
- Lopes, Divonsir
- Souza, Robson de Oliveira
- Soares, Rogerio Floriao
|
출원인 / 주소 |
- Petroleo Brasileiro S.A.-Petrobras
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
17 |
초록
▼
This relates to a gas separator (8) of the cascade type, with stratified or non-stratified flow, equipped with automatic level control to perform a process of the gravitational separation of two immiscible fluids of different densities, particularly to separate the gaseous phase from a two-phase mix
This relates to a gas separator (8) of the cascade type, with stratified or non-stratified flow, equipped with automatic level control to perform a process of the gravitational separation of two immiscible fluids of different densities, particularly to separate the gaseous phase from a two-phase mixture (liquid and gas). It is installed at the bottom of an oil well, upstream from a lifting pump (12) in order to minimize the entry of gas into pump (12). The level control system comprises a valve (29), a spring (30) and a packer (26). It is based on the combined effects of the abovementioned components (26, 29, 30), the gas pressure on the region of perforated casing (10) and the thrust exerted on a settling vessel (3) by the liquid on which it floats. The separator according to the invention has a control system for the level of the liquid stored in settling vessel (3) mounted within its separator (8), ensuring flow of the mixture which is ideal for the occurrence of gas separation.
대표청구항
▼
This relates to a gas separator (8) of the cascade type, with stratified or non-stratified flow, equipped with automatic level control to perform a process of the gravitational separation of two immiscible fluids of different densities, particularly to separate the gaseous phase from a two-phase mix
This relates to a gas separator (8) of the cascade type, with stratified or non-stratified flow, equipped with automatic level control to perform a process of the gravitational separation of two immiscible fluids of different densities, particularly to separate the gaseous phase from a two-phase mixture (liquid and gas). It is installed at the bottom of an oil well, upstream from a lifting pump (12) in order to minimize the entry of gas into pump (12). The level control system comprises a valve (29), a spring (30) and a packer (26). It is based on the combined effects of the abovementioned components (26, 29, 30), the gas pressure on the region of perforated casing (10) and the thrust exerted on a settling vessel (3) by the liquid on which it floats. The separator according to the invention has a control system for the level of the liquid stored in settling vessel (3) mounted within its separator (8), ensuring flow of the mixture which is ideal for the occurrence of gas separation. ree and braking positions; (iii) each one of said first and second opposed, brake members being moved out of braking engagement with the side rail, when installed and when said brake members are in said free positions; and (iv) each one of said first and second opposed, brake members being moved into braking engagement with the side rail, when installed and when said brake members are in said braking positions, (A) said first brake member being oriented to apply a first braking pressure to a first side portion of the side rail, when in said braking position; and, (B) said second brake member being oriented to apply a second braking pressure to a second side portion of the side rail, when in said braking position, said second braking pressure being applied in a direction generally opposite to said first braking pressure; (b) an actuator assembly including a stay mechanism and a release mechanism; (i) the stay mechanism being constructed and arranged to maintain said first and second brake members in said free positions, when installed, until a selected, catastrophic, failure of the lift mechanism; and (ii) the release mechanism being constructed and arranged to release said first and second brake members for movement into said braking positions, when installed, upon a selected, catastrophic, failure of the lift mechanism; and, (c) a biasing mechanism constructed and arranged to move the first and second brake members into said braking positions, when installed and when said release mechanism releases said brake members for movement, said biasing mechanism comprising: (i) a first torsion spring mounted on, and circumscribing, said first rotatably mounted axle; and (ii) a second torsion spring mounted on, and circumscribing, said second rotatably mounted axle. 2. A safety catch assembly according to claim 1 wherein: (a) the first and second brake members each comprise a non-circular member having a brake surface with projections. 3. A safety catch assembly according to claim 1 wherein: (a) the first and second brake members are oriented to apply braking pressure directed toward one another. 4. A safety catch assembly according to claim 1 wherein: (a) the first and second brake members are oriented to apply braking pressure directed away from one another. 5. A safety catch assembly for selectively inhibiting downward movement of a panel that travels vertically in a track having a side rail, during catastrophic failure of a panel lift mechanism; said safety catch assembly comprising: (a) first and second brake members selectively actuatable to move from free positions to braking positions; (i) said first brake member being rotatably mounted on a first end of a first rotatably mounted axle, for rotational movement between said free and braking positions; (ii) said second brake member being rotatably mounted on a first end of a second rotatably mounted axle, for rotational movement between said free and braking positions; (iii) each one of said first and second opposed, brake members being moved out of braking engagement with the side rail, when installed and when said brake members are in said free positions; and (iv) each one of said first and second opposed, brake members being moved into braking engagement with the side rail, when installed and when said brake members are in said braking positions, (A) said first brake member being oriented to apply a first braking pressure to a first side portion of the side rail, when in said braking position; and, (B) said second brake member being oriented to apply a second braking pressure to a second side portion of the side rail, when in said braking position, said second braking pressure being applied in a direction generally opposite to said first braking pressure; (b) an actuator assembly including a control arm, first and second rotatable cams, a stay mechanism and a release mechanism; (i) said first rotatable cam being positioned on a
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