CN201496037U - Electric equipressure oil nozzle - Google Patents
Electric equipressure oil nozzle Download PDFInfo
- Publication number
- CN201496037U CN201496037U CN2009201644617U CN200920164461U CN201496037U CN 201496037 U CN201496037 U CN 201496037U CN 2009201644617 U CN2009201644617 U CN 2009201644617U CN 200920164461 U CN200920164461 U CN 200920164461U CN 201496037 U CN201496037 U CN 201496037U
- Authority
- CN
- China
- Prior art keywords
- valve body
- spool
- following
- fluid cavity
- valve
- 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
Links
Images
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a switch device for adjusting liquid flow in internal and external pipelines of an oil well, and is an electric equipressure oil nozzle. The electric equipressure oil nozzle comprises a lower valve body, a valve core, a cylinder lid and a piston, wherein, the internal side of the upper end of the lower valve body and the external side of the lower end of the cylinder lid are fixedly connected together; an oil inlet chamber is arranged in the upper part of the lower valve body; and an upper liquid chamber and a lower liquid chamber are arranged in the middle of the lower valve body. The utility model has reasonable and compact structure, the axial pressure acting on the valve core is balanced by unequal stress surfaces on both ends of the valve core, the valve core is in an equipressure state in the axial direction and does not move without external force, and can move in a reciprocating mode by only axially applying a little action force, the screw pump has small size, low electric consumption and easy control, the switch liquid outlet passage automatically adjusts the liquid flow, and the movement of the valve core is not influenced by the pressure change in the well, thus, the pressure and the flow of the liquid can be effectively analyzed, and potential safety hazard is also reduced.
Description
One, technical field
The utility model relates to the switching device of adjusting fluid flow in the inside and outside pipeline of oil well, is a kind of electronic isobaric oil nozzle.
Two, background technology
At present, the current limliting of oil well, well, gas well fluid is to place positive choke in the fluid issuing passage, the adjusting of its flow can only be regulated by changing different latus rectum oil nozzles, also to continuous rotate oil well gate handwheel regulating gate aperture back and forth simultaneously and obtain suitable well head pressure and fluid flow, because borehole pressure is big, not only there is potential safety hazard in the method for this adjusting flow, and effectively fluid pressure, flow are analyzed dynamically.
Three, summary of the invention
The utility model provides a kind of electronic isobaric oil nozzle, has overcome the deficiency of above-mentioned prior art, and it can effectively solve existing oil nozzle fluid pressure, the flow problem of carrying out dynamic analysis effectively.
The technical solution of the utility model realizes by following measure: a kind of electronic isobaric oil nozzle comprises valve body, spool, cylinder cap and piston down; The inboard outside, lower end with cylinder cap, the upper end of following valve body is fixed together, in the valve body top oil suction chamber is being arranged down, fluid cavity and following fluid cavity in following valve body middle part, having, on following valve body, have respectively make be connected outside fluid cavity and following fluid cavity and the following valve body on fluid inlet and following fluid inlet, first intercommunicating pore that fluid cavity and following fluid cavity in the connection are arranged on the following valve body between last fluid cavity and the following fluid cavity, the fluid issuing passage is arranged at the bottom at following valve body, between oil suction chamber and last fluid cavity, the upper valve core passage is arranged, between last fluid cavity and following fluid cavity, the bottom spool passage is arranged; The piston that can move up and down is arranged in oil suction chamber, in lower part of piston the piston boss is arranged, the piston boss is sleeved in the inwall of oil suction chamber, the top of piston is sleeved in the cylinder cap, the axial hole that is connected with the outside is arranged in piston, have and the radial hole that is connected with axial hole and oil suction chamber respectively in lower part of piston, the fuel feed hole that is connected with oil suction chamber and outside is respectively arranged on cylinder cap; The lower end of piston and the upper end of spool are fixed together, the lower end of spool is passed the upper valve core passage in regular turn, last fluid cavity, be positioned at fluid cavity down behind the bottom spool passage, be installed with the needle-valve that can enter into the fluid issuing passage in the lower end of spool, the lower end of following valve body is fluted, inner convex platform is arranged at the top at groove, in groove, be installed with outlet valve, the outlet valve road that is connected with the fluid issuing passage is arranged in the outlet valve, the last end face of outlet valve withstands on the bottom surface of inner convex platform, top at outlet valve is installed with ball seat, there is spring that inner convex platform is installed in bottom, outlet valve road, the base part seat of spring is installed on the inner convex platform at spring, and there is steel ball the upper end of spring, and the lower end seat of steel ball is in the upper end of spring, the upper end energy seat of steel ball is equipped with the power set that piston is moved up and down in the upper end of cylinder cap on ball seat.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned power set can comprise upper valve body, screw pump and motor; The outside, upper end of cylinder cap is fixed together with the inboard, lower end of upper valve body, screw pump and motor are arranged in upper valve body, the outside, lower end of screw pump is fixed together with the inboard, upper end of cylinder cap, the upper end of screw pump and the lower end of motor are fixedly installed togather, the turning cylinder of motor and the turning cylinder of screw pump are fixed together by key, between screw pump and the upper valve body cavity that is connected with fuel feed hole is arranged, the ante-chamber that is connected with axial hole is arranged in the front portion of screw pump, there is back cavity at rear portion at screw pump, the sealing screw rod is arranged between ante-chamber and the back cavity, second intercommunicating pore that is communicated with cavity and back cavity is arranged on screw pump.
In the above-mentioned upper valve body positioning table can be arranged, terminal pad is arranged above positioning table, the bottom of terminal pad withstands on the upper surface of positioning table, the outside, upper end of screw pump is fixed together with the inboard, lower end of terminal pad, terminal pad is fixedly installed togather by the upper end of dog screw and motor, the hole that can pass through the turning cylinder of motor is arranged on terminal pad, rotary head is arranged above motor, the outside, lower end of rotary head is fixed together and holds out against motor with the inboard, upper end of upper valve body, the synchronous hole that can pass the motor cable line is arranged in rotary head, radially installing hole is arranged in rotary head, radially in the installing hole rotating shaft is being arranged, rotating shaft is fixedly installed togather by rotating shaft sync screw and rotary head, and two rotating shaft locating holes are arranged in rotating shaft.
On the following valve body of the above-mentioned first intercommunicating pore inboard following valve body inner convex platform can be arranged, valve core housing is contained in down in the valve body inner convex platform, the spool boss is arranged on spool, the spool boss is sleeved on down on the following valve interior wall between valve body inner convex platform and the last fluid cavity, the following valve interior wall between following valve body inner convex platform and the last fluid cavity, forms air chamber between valve body inner convex platform, spool boss and the spool down.
Between following valve interior wall between above-mentioned upward fluid cavity and the oil suction chamber and the spool valve core housing can be arranged, valve core housing is L-shaped, the L shaped minor face of valve core housing is fixedly mounted on the sidewall of oil suction chamber, and the L shaped long limit of valve core housing is installed between the following valve interior wall and spool between fluid cavity and the oil suction chamber.
The L shaped minor face of above-mentioned valve core housing can be installed on the sidewall of oil suction chamber by screw.
The outside, upper end of above-mentioned cylinder cap can be fixed together by screw thread with the inboard, lower end of upper valve body, and the outside, lower end of screw pump is fixed together by screw thread with the inboard, upper end of cylinder cap.
The lower end of above-mentioned piston and the upper end of spool can be fixed together by screw thread.
The upper outside of above-mentioned outlet valve can be fixed together by the inboard, lower end of screw thread with following valve body, in the outside, bottom of outlet valve screw thread is arranged.
The utility model reasonable and compact in structure, easy to use, the stress surface that does not wait by the spool two ends, make the suffered axial compression balance of spool, spool is in isopiestic state in the axial direction, when not being subjected to external force, do not produce mobile, wanting moving valve core only need apply very little active force in the axial direction just can make spool move back and forth, and the screw pump volume is little, electricity consumption is few, easy to control, realize the automatic regulated fluid flow of switch fluid issuing passage, spool move the influence be not subjected to the borehole pressure size variation, therefore fluid pressure effectively, flow is analyzed dynamically, has also reduced potential safety hazard.
Four, description of drawings
Accompanying drawing 3 is overlooked the structure for amplifying schematic diagram for accompanying drawing 1.
Accompanying drawing 4 for A-A in the accompanying drawing 1 to analysing and observe the structure for amplifying schematic diagram.
Coding in the accompanying drawing is respectively: 1 is following valve body, and 2 is spool, and 3 is cylinder cap, 4 is piston, and 5 is oil suction chamber, and 6 is last fluid cavity, 7 are following fluid cavity, and 8 is last fluid inlet, and 9 are following fluid inlet, 10 is first intercommunicating pore, and 11 is the fluid issuing passage, and 12 is the piston boss, 13 is axial hole, and 14 is radial hole, and 15 is fuel feed hole, 16 is needle-valve, and 17 is groove, and 18 is inner convex platform, 19 is outlet valve, and 20 is the outlet valve road, and 21 is ball seat, 22 are spring installation inner convex platform, and 23 is spring, and 24 is steel ball, 25 are following valve body inner convex platform, and 26 is the spool boss, and 27 are following valve interior wall, 28 is air chamber, and 29 is valve core housing, and 30 is the sidewall of oil suction chamber, 31 is upper valve body, 32 is screw pump, and 33 is motor, and 34 is the turning cylinder of motor, 35 is the turning cylinder of screw pump, 36 is key, and 37 is cavity, and 38 is ante-chamber, 39 is back cavity, 40 is second intercommunicating pore, and 41 is positioning table, and 42 is terminal pad, 43 is dog screw, 44 is the motor cable line, and 45 is synchronous hole, and 46 are rotating shaft, 47 are the rotating shaft sync screw, 48 are the rotating shaft locating hole, and 49 is screw, and 50 are rotary head.
Five, the specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1,2,3,4, this electronic isobaric oil nozzle comprises valve body 1, spool 2, cylinder cap 3 and piston 4 down; The inboard outside, lower end with cylinder cap 3, the upper end of following valve body 1 is fixed together, in valve body 1 top oil suction chamber 5 is being arranged down, fluid cavity 6 and following fluid cavity 7 in following valve body 1 middle part, having, on following valve body 1, have respectively make that fluid cavity 6 and following fluid cavity 7 be connected with following valve body 1 outside on fluid inlet 8 and following fluid inlet 9, first intercommunicating pore 10 that fluid cavity in the connection 6 and following fluid cavity 7 are arranged on the following valve body 1 between last fluid cavity 6 and the following fluid cavity 7, fluid issuing passage 11 is arranged at the bottom at following valve body 1, between oil suction chamber 5 and last fluid cavity 6, the upper valve core passage is arranged, between last fluid cavity 6 and following fluid cavity 7, the bottom spool passage is arranged; The piston 4 that can move up and down is arranged in oil suction chamber 5, in the bottom of piston 4 piston boss 12 is arranged, piston boss 12 is sleeved in the inwall of oil suction chamber 5, the top of piston 4 is sleeved in the cylinder cap 3, the axial hole 13 that is connected with the outside is arranged in piston 4, have and the radial hole 14 that is connected with axial hole 13 and oil suction chamber 5 respectively in the bottom of piston 4, the fuel feed hole 15 that is connected with oil suction chamber 5 and outside is respectively arranged on cylinder cap 3; The upper end of the lower end of piston 4 and spool 2 is fixed together, the lower end of spool 2 is passed the upper valve core passage in regular turn, last fluid cavity 6, be positioned at fluid cavity 7 down behind the bottom spool passage, be installed with the needle-valve 16 that can enter into fluid issuing passage 11 in the lower end of spool 2, the lower end of following valve body 1 fluted 17, on the top of groove 17 inner convex platform 18 is arranged, in groove 17, be installed with outlet valve 19, the outlet valve road 20 that is connected with fluid issuing passage 11 is arranged in the outlet valve 19, the last end face of outlet valve 19 withstands on the bottom surface of inner convex platform 18, be installed with ball seat 21 at the top of outlet valve 19, there is spring that inner convex platform 22 is installed in 20 bottoms, outlet valve road, the base part seat of spring 23 is installed on the inner convex platform 22 at spring, there is steel ball 24 upper end of spring 23, the lower end seat of steel ball 24 is in the upper end of spring 23, the upper end energy seat of steel ball 24 is equipped with the power set that piston 4 is moved up and down in the upper end of cylinder cap 3 on ball seat 21.
Can according to actual needs above-mentioned electronic isobaric oil nozzle be made further optimization and/or improvements:
Shown in accompanying drawing 1,2, these power set comprise upper valve body 31, screw pump 32 and motor 33; The outside, upper end of cylinder cap 3 is fixed together with the inboard, lower end of upper valve body 31, screw pump 32 and motor 33 are arranged in upper valve body 31, the outside, lower end of screw pump 32 is fixed together with the inboard, upper end of cylinder cap 3, the lower end of the upper end of screw pump 32 and motor 33 is fixedly installed togather, the turning cylinder 34 of motor and the turning cylinder 35 of screw pump are fixed together by key 36, between screw pump 32 and the upper valve body 31 cavity 37 that is connected with fuel feed hole 15 is arranged, the ante-chamber 38 that is connected with axial hole 13 is arranged in the front portion of screw pump 32, at the rear portion of screw pump 32 back cavity 39 is arranged, between ante-chamber 38 and the back cavity 39 the sealing screw rod is arranged, second intercommunicating pore 40 that is communicated with cavity 37 and back cavity 39 is arranged on screw pump 32.
As accompanying drawing 1,2, shown in 4, positioning table 41 is arranged in the upper valve body 31, terminal pad 42 is arranged above positioning table 41, the bottom of terminal pad 42 withstands on the upper surface of positioning table 41, the outside, upper end of screw pump 32 is fixed together with the inboard, lower end of terminal pad 42, terminal pad 42 is fixedly installed togather by the upper end of dog screw 43 with motor 33, the hole that can pass through the turning cylinder 34 of motor is arranged on terminal pad 42, rotary head 50 is arranged above motor 33, the outside, lower end of rotary head 50 is fixed together and holds out against motor 33 with the inboard, upper end of upper valve body 31, the synchronous hole 45 that can pass motor cable line 44 is arranged in rotary head 50, radially installing hole is arranged in rotary head 50, radially in the installing hole rotating shaft 46 is being arranged, rotating shaft 46 is fixedly installed togather by rotating shaft sync screw 47 and rotary head 50, and two rotating shaft locating holes 48 are arranged in rotating shaft 46.
Shown in accompanying drawing 1,2, on the following valve body 1 of first intercommunicating pore, 10 inboards following valve body inner convex platform 25 is arranged, spool 2 is sleeved on down in the valve body inner convex platform 25, spool boss 26 is arranged on spool 2, spool boss 26 is sleeved on down on the following valve interior wall 27 between valve body inner convex platform 25 and the last fluid cavity 6, the following valve interior wall 27 between following valve body inner convex platform 25 and the last fluid cavity 6, forms air chamber 28 between valve body inner convex platform 25, spool boss 26 and the spool 2 down.
Shown in accompanying drawing 1,2, between following valve interior wall 27 between last fluid cavity 6 and the oil suction chamber 5 and the spool 2 valve core housing 29 is arranged, valve core housing 29 is L-shaped, the L shaped minor face of valve core housing 29 is fixedly mounted on the sidewall 30 of oil suction chamber, the L shaped long limit of valve core housing 29 is installed between the following valve interior wall 27 and spool 2 between fluid cavity 6 and the oil suction chamber 5, like this, can increase sealing, avoid hydraulic oil to flow in the fluid cavity 6.
Shown in accompanying drawing 1,2, for the ease of connecting and dismounting, the L shaped minor face of valve core housing 29 is fixedly mounted on the sidewall 30 of oil suction chamber by screw 49.
Shown in accompanying drawing 1,2, for the ease of connecting and dismounting, the outside, upper end of cylinder cap 3 is fixed together by screw thread with the inboard, lower end of upper valve body 31, and the outside, lower end of screw pump 32 is fixed together by screw thread with the inboard, upper end of cylinder cap 3.
Shown in accompanying drawing 1,2, for the ease of connecting and dismounting, the upper end of the lower end of piston 4 and spool 2 is fixed together by screw thread.
Shown in accompanying drawing 1,2, for the ease of connecting and dismounting, the upper outside of outlet valve 19 is fixed together by the inboard, lower end of screw thread with following valve body 1, in the outside, bottom of outlet valve 19 screw thread is arranged.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: at tubing string type well, oil well, salt well, when geothermal well is test-manufactured or when carrying out the collection of data, this electronic isobaric oil nozzle is connected to tubing string or G.I.H, formation fluid enters fluid cavity 6 by last fluid inlet 8 in tubing string annular fluid or the well, enter down fluid cavity 7 by following fluid inlet 9, the primer fluid pressure device, hydraulic oil is entered into oil suction chamber 5 by axial hole 13 and radial hole 14, move up and drive spool 2 and move right and fluid issuing passage 11 is opened thereby promote piston 4, fluid backs down from the outlet valve road 20 to the steel balls 24 in the outlet valve 19 and flows out; When needs stop fluid to enter fluid issuing passage 11, the primer fluid pressure device, thereby with hydraulic oil by fuel feed hole 15 and promote piston 4 and move down and drive spool 2 and move down, fluid issuing passage 11 is closed by the needle-valve 16 of spool 2 lower ends, steel ball 24 in the outlet valve 19 cuts out at following fluid issuing passage 11 of the effect of spring 23, stops the fluid in the tubing string to enter fluid issuing passage 11.Last fluid cavity 6 and following fluid cavity 7 are communicated with by first intercommunicating pore 10, make two cavity pressures identical, because the sealing process of spool boss 26, the axial compression that spool 2 lower end needle-valve faces are subjected to equates with the axial compression of spool boss 26 tops, it is zero that fluid acts on axially making a concerted effort on the spool 2, so that spool 2 does not produce when not being subjected to external force is mobile; Spool 2 air chamber 28 when side-to-side movement is promoted by piston 4 during spool 2 side-to-side movements because of finding time and compressive force that spool boss 26 will produce, only need overcome very little the finding time and compressive force that air chamber 28 produces; The motion of piston 4 is by screw pump 32 controls, when screw pump 32 is just changeing, liquid is got into the ante-chamber 38 that is connected with axial hole 13, promote to move on the piston 4, the liquid of oil suction chamber 5 upper ends enters in the cavity 37 by fuel feed hole 15 and in second intercommunicating pore 40 is inhaled into the back cavity 39 at rear portion of screw pump 32 simultaneously; Promoting piston 4 during screw pump 32 counter-rotatings in like manner moves down, when not rotating, screw pump 32 good sealing is not arranged because of the screw pump stator and rotor, stoped the mobile piston 4 that makes of the liquid of oil suction chamber 5 upper and lower cavities to keep motionless, the control position is motionless thereby the aperture that makes fluid issuing passage 11 remains on institute, reaches the purpose of adjusting flow.
Claims (10)
1. an electronic isobaric oil nozzle is characterized in that comprising valve body, spool, cylinder cap and piston down; The inboard outside, lower end with cylinder cap, the upper end of following valve body is fixed together, in the valve body top oil suction chamber is being arranged down, fluid cavity and following fluid cavity in following valve body middle part, having, on following valve body, have respectively make be connected outside fluid cavity and following fluid cavity and the following valve body on fluid inlet and following fluid inlet, first intercommunicating pore that fluid cavity and following fluid cavity in the connection are arranged on the following valve body between last fluid cavity and the following fluid cavity, the fluid issuing passage is arranged at the bottom at following valve body, between oil suction chamber and last fluid cavity, the upper valve core passage is arranged, between last fluid cavity and following fluid cavity, the bottom spool passage is arranged; The piston that can move up and down is arranged in oil suction chamber, in lower part of piston the piston boss is arranged, the piston boss is sleeved in the inwall of oil suction chamber, the top of piston is sleeved in the cylinder cap, the axial hole that is connected with the outside is arranged in piston, have and the radial hole that is connected with axial hole and oil suction chamber respectively in lower part of piston, the fuel feed hole that is connected with oil suction chamber and outside is respectively arranged on cylinder cap; The lower end of piston and the upper end of spool are fixed together, the lower end of spool is passed the upper valve core passage in regular turn, last fluid cavity, be positioned at fluid cavity down behind the bottom spool passage, be installed with the needle-valve that can enter into the fluid issuing passage in the lower end of spool, the lower end of following valve body is fluted, inner convex platform is arranged at the top at groove, in groove, be installed with outlet valve, the outlet valve road that is connected with the fluid issuing passage is arranged in the outlet valve, the last end face of outlet valve withstands on the bottom surface of inner convex platform, top at outlet valve is installed with ball seat, there is spring that inner convex platform is installed in bottom, outlet valve road, the base part seat of spring is installed on the inner convex platform at spring, and there is steel ball the upper end of spring, and the lower end seat of steel ball is in the upper end of spring, the upper end energy seat of steel ball is equipped with the power set that piston is moved up and down in the upper end of cylinder cap on ball seat.
2. electronic isobaric oil nozzle according to claim 1 is characterized in that power set comprise upper valve body, screw pump and motor; The outside, upper end of cylinder cap is fixed together with the inboard, lower end of upper valve body, screw pump and motor are arranged in upper valve body, the outside, lower end of screw pump is fixed together with the inboard, upper end of cylinder cap, the upper end of screw pump and the lower end of motor are fixedly installed togather, the turning cylinder of motor and the turning cylinder of screw pump are fixed together by key, between screw pump and the upper valve body cavity that is connected with fuel feed hole is arranged, the ante-chamber that is connected with axial hole is arranged in the front portion of screw pump, there is back cavity at rear portion at screw pump, the sealing screw rod is arranged between ante-chamber and the back cavity, second intercommunicating pore that is communicated with cavity and back cavity is arranged on screw pump.
3. electronic isobaric oil nozzle according to claim 2, it is characterized in that positioning table is arranged in the upper valve body, terminal pad is arranged above positioning table, the bottom of terminal pad withstands on the upper surface of positioning table, the outside, upper end of screw pump is fixed together with the inboard, lower end of terminal pad, terminal pad is fixedly installed togather by the upper end of dog screw and motor, the hole that can pass through the turning cylinder of motor is arranged on terminal pad, rotary head is arranged above motor, the outside, lower end of rotary head is fixed together and holds out against motor with the inboard, upper end of upper valve body, the synchronous hole that can pass the motor cable line is arranged in rotary head, radially installing hole is arranged in rotary head, radially in the installing hole rotating shaft is being arranged, rotating shaft is fixedly installed togather by rotating shaft sync screw and rotary head, and two rotating shaft locating holes are arranged in rotating shaft.
4. according to claim 1 or 2 or 3 described electronic isobaric oil nozzles, it is characterized in that on the following valve body of the first intercommunicating pore inboard following valve body inner convex platform being arranged, valve core housing is contained in down in the valve body inner convex platform, the spool boss is arranged on spool, the spool boss is sleeved on down on the following valve interior wall between valve body inner convex platform and the last fluid cavity, the following valve interior wall between following valve body inner convex platform and the last fluid cavity, forms air chamber between valve body inner convex platform, spool boss and the spool down.
5. according to claim 1 or 2 or 3 described electronic isobaric oil nozzles, it is characterized in that between following valve interior wall between fluid cavity and the oil suction chamber and the spool valve core housing being arranged, valve core housing is L-shaped, the L shaped minor face of valve core housing is fixedly mounted on the sidewall of oil suction chamber, and the L shaped long limit of valve core housing is installed between the following valve interior wall and spool between fluid cavity and the oil suction chamber.
6. electronic isobaric oil nozzle according to claim 4, it is characterized in that between following valve interior wall between fluid cavity and the oil suction chamber and the spool valve core housing being arranged, valve core housing is L-shaped, the L shaped minor face of valve core housing is fixedly mounted on the sidewall of oil suction chamber, and the L shaped long limit of valve core housing is installed between the following valve interior wall and spool between fluid cavity and the oil suction chamber.
7. electronic isobaric oil nozzle according to claim 6 is characterized in that the L shaped minor face of valve core housing is installed on the sidewall of oil suction chamber by screw.
8. electronic isobaric oil nozzle according to claim 7 is characterized in that the outside, upper end of cylinder cap and the inboard, lower end of upper valve body are fixed together by screw thread, and the outside, lower end of screw pump is fixed together by screw thread with the inboard, upper end of cylinder cap.
9. electronic isobaric oil nozzle according to claim 8 is characterized in that the lower end of piston and the upper end of spool are fixed together by screw thread.
10. electronic isobaric oil nozzle according to claim 9 is characterized in that the upper outside of outlet valve is fixed together by the inboard, lower end of screw thread with following valve body, in the outside, bottom of outlet valve screw thread is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201644617U CN201496037U (en) | 2009-09-17 | 2009-09-17 | Electric equipressure oil nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201644617U CN201496037U (en) | 2009-09-17 | 2009-09-17 | Electric equipressure oil nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496037U true CN201496037U (en) | 2010-06-02 |
Family
ID=42439245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201644617U Expired - Fee Related CN201496037U (en) | 2009-09-17 | 2009-09-17 | Electric equipressure oil nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295872A (en) * | 2019-07-01 | 2019-10-01 | 成都百胜野牛科技有限公司 | Well head flow control valve |
-
2009
- 2009-09-17 CN CN2009201644617U patent/CN201496037U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295872A (en) * | 2019-07-01 | 2019-10-01 | 成都百胜野牛科技有限公司 | Well head flow control valve |
| CN110295872B (en) * | 2019-07-01 | 2024-04-02 | 成都百胜野牛科技有限公司 | Wellhead flow regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205478197U (en) | From intake piston and cylinder | |
| CN202789454U (en) | Mechanical diaphragm type metering pump | |
| CN102840134B (en) | Vane control mechanism | |
| CN202937417U (en) | Oblique shaft type axial plunger pump/motor with novel-structure plunger | |
| CN201496037U (en) | Electric equipressure oil nozzle | |
| CN202596692U (en) | Underground intelligent water distribution nozzle device | |
| CN205260297U (en) | Hydraulic pressure booster pump | |
| CN202280862U (en) | Top-mounted eccentric semi ball valve | |
| CN201496038U (en) | Downhole isotonic electric oil nozzle | |
| CN201443493U (en) | Hydraulic diaphragm pump | |
| CN202746199U (en) | Hydraulic control mechanism | |
| CN201560933U (en) | Self-assignment constant-power variable valve core mechanism | |
| CN201909078U (en) | Multifunctional dynamic flow rate balance valve | |
| CN201496036U (en) | Constant-pressure choke | |
| CN203783909U (en) | Jet nozzle for self-priming pump | |
| CN203114257U (en) | Single-pressure liquid inlet regulating valve | |
| CN208816259U (en) | A kind of common-rail injector | |
| CN201399175Y (en) | Balance control valve | |
| CN102168800A (en) | Dual-point oil supply oil feeder and oil feeder integration | |
| CN201714634U (en) | Air intake valve structure of air compressor | |
| CN206860418U (en) | A kind of stepping oil extraction pump | |
| CN111577949A (en) | Impact atomization type temperature and pressure reducing valve | |
| CN201173389Y (en) | Indoor gas pressure regulator | |
| CN201190807Y (en) | Tube pressure self-boosting close and open valve | |
| CN105275805B (en) | A kind of oil injection type double-screw compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CNPC XIBU DRILLING ENGINEERING COMPANY LIMITED Free format text: FORMER OWNER: XINJIANG PETROLEUM ADMINISTRATION OIL-TESTING COMPANY Effective date: 20130105 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 834000 KARAMAY, XINJIANG UYGUR AUTONOMOUS REGION TO: 830026 URUMQI, XINJIANG UYGUR AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130105 Address after: 830026, No. 68 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: CNPC Xibu Drilling Engineering Company Limited Address before: Karamay District 834000 the Xinjiang Uygur Autonomous Region Karamay City three Town Village Entrepreneurship Patentee before: Xinjiang Petroleum Administration Oil-testing Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20140917 |
|
| EXPY | Termination of patent right or utility model |