CN204827881U - Long column stopper circulating pump - Google Patents
Long column stopper circulating pump Download PDFInfo
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- CN204827881U CN204827881U CN201520499236.4U CN201520499236U CN204827881U CN 204827881 U CN204827881 U CN 204827881U CN 201520499236 U CN201520499236 U CN 201520499236U CN 204827881 U CN204827881 U CN 204827881U
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Abstract
The utility model provides a long column stopper circulating pump, it includes that shaft type plunger and slip cap locate the outer pump barrel of plunger, and the upper end of plunger is provided with at least one traveling valve, and the lower extreme of pump barrel is connected with the bleeder, the lower extreme of bleeder is provided with at least one standing valve, the traveling valve includes the first valve body of shaft type, and first valve body internal fixation cover is equipped with first valve bonnet and first disk seat, and the first valve bonnet setting of shaft type is on first disk seat, and the dead in line of the axis of first valve bonnet and first disk seat, and the lateral wall of first valve bonnet and the top of first valve bonnet are provided with the through -hole that can form the runner, be provided with first valve ball in the first valve bonnet, the reciprocating axially of first valve bonnet only can be followed to the internal diameter of first valve bonnet and the diameter phase -match of first valve ball, first valve ball, the traveling valve with the structure of standing valve is the same. The utility model discloses a long column stopper circulating pump can effectively prevent the inclined to one side mill leakage of disk seat, reduces the wearing and tearing of disk seat, prevents that holddown and plunger from pulling.
Description
Technical field
The utility model relates to a kind of rod pump being applied to thickened oil recovery, particularly a kind of long-plunger circulating pump.
Background technique
Thick oil well rod pump Lifting Technique, in application process, needs the subject matter solved to be the oil flow resistance how reduced in pump, and improves the anti-sand card ability of pump.The oil flow channel of prior art adopts streamline reaming design, select cemented carbide material, sand setting structure is have employed and structure of strike-ofing in anti-sticking, as long-plunger sand setting pump, movable barrel type sand setting pump and other there is the Special Pump of structure of strike-ofing, and achieve certain effect, can the needs of basic guarantee oil well production.
But meanwhile, also there is following technical problem in the oil flow channel of streamline reaming:
1, due to the excesssive gap of valve ball and valve bonnet, the hunting range of valve ball is comparatively large, and valve ball not easily aims at the runner of valve seat in dropping process, causes valve seat eccentric wear to miss;
2, the jumping height of valve ball is comparatively large, and when closing oil flow channel, valve ball is comparatively large to the impact force of valve seat, exacerbates the wearing and tearing of valve seat;
3, the sand-control pump external diameter of sand setting structure is comparatively large, under the present situation that in the heavy oil development middle and later periods, cover becomes, side-drilling increases, can not meet the needs that viscous crude is produced.
Above technical problem showing as at the scene, a large amount of oil well is because operation is repaiied in traveling valve, standing valve leakage, and oil well holddown and the plunger of the sand pump that can not sink are pulled seriously, not only increase operating cost, improve cost for oil production, also have impact on output simultaneously.
Model utility content
Serious problem is pulled in order to overcome the leakage of valve seat eccentric wear, the prooving of valve seat and conventional pump sands-proof check ability, plunger, the utility model provides a kind of long-plunger circulating pump, the hunting range of valve ball can be reduced, reduce the jumping height of valve ball, and the sands-proof check of pump can be improved and plunger tension hinders ability, thus solve the serious and conventional pump sands-proof check ability of the leakage of valve seat eccentric wear, the prooving of valve seat, plunger pulls serious problems, reach extend pump detection period, reduce cost for oil production, the object of rate when improving oil well production.
The utility model solves the technological scheme that its technical problem adopts: a kind of long-plunger circulating pump, it comprises the plunger of tubular and flip sleeve and is located at pump barrel outside plunger, the upper end of plunger is provided with at least one traveling valve, the lower end of pump barrel is connected with oil drainer, the lower end of described oil drainer is provided with at least one standing valve, described traveling valve comprises the first valve body of tubular, first valve body internal fixtion is arranged with the first valve bonnet and the first valve seat, first valve bonnet of tubular is arranged on the first valve seat, and the dead in line of the axis of the first valve bonnet and the first valve seat, the sidewall of the first valve bonnet and the top of the first valve bonnet are provided with the through hole that can form runner, be provided with the first valve ball in first valve bonnet, the internal diameter of the first valve bonnet and the diameter of the first valve ball match, and the first valve ball only can along the axially reciprocating of the first valve bonnet, and described traveling valve is identical with the structure of described standing valve.
The axis of the first valve body is vertically arranged, and the first valve bonnet is the tubular that top closure bottom opens, and the through hole being positioned at the first valve bonnet top is communicated with formation inverted L shape structure with the through hole being positioned at the first valve bonnet side wall upper part; Annular space is provided with between the outer wall of the first valve bonnet and the inwall of the first valve body.
The first spring shield is also fixedly installed in first valve body, first spring shield is the tubular that top closure bottom opens, the external diameter of the first spring shield and the internal diameter of the first valve body match, and the through hole being positioned at the first spring shield top is communicated with formation inverted L shape structure with the through hole being positioned at the first spring shield side wall upper part; First spring shield is arranged at the top of the first valve bonnet, the top of the first spring shield is provided with positioning hole, the top of the first valve bonnet is provided with lower positioning hole, upper positioning hole and interior slip of lower positioning hole are provided with the first push rod of energy contact first valve ball, the position of the first push rod between upper positioning hole and lower positioning hole is provided with defining flange, and the external diameter of defining flange is greater than the diameter of lower positioning hole; The first spring for first push rod that resets is arranged with, between the top that the first spring is arranged on the first spring shield and defining flange outside first push rod.
First push rod is also arranged with the first upper spring cover and the first lower spring cover outward, first upper spring cover and the first lower spring cover are positioned at the first spring shield, first upper spring cover is positioned at the top of the first lower spring cover, the tubular that first upper spring cover opens for top closure bottom, first lower spring cover is the tubular of open top end bottom end closure, the upper end of the first spring is plugged in the first upper spring cover, the lower end of the first spring is plugged in the first lower spring cover, the top of contact first spring shield is overlapped in the upper end of the first spring by the first upper spring, the lower end of the first spring is by the first lower spring cover contact defining flange.
Described traveling valve also comprises the first connecting body of tubular, the upper end of the first connecting body is fixedly connected with the lower end of the first valve body, the inwall of the first connecting body is provided with the spacing fin that can limit the first valve seat and move upward, the outer wall of the first valve seat is provided with the annular groove matched with spacing fin.
The upper end of plunger is provided with two described traveling valves setting up and down, the described traveling valve on top is connected and fixed by the described traveling valve of the first valve base joint and bottom, and the lower end of the described traveling valve of bottom is connected and fixed by the second valve base joint of tubular and the upper end of plunger.
The upper end of the described traveling valve on top is also provided with rod connector, rod connector is provided with the inner chamber of connection first valve body and the runner of described long-plunger circulating pump outside.
The upper end of pump barrel is connected with pump box cupling, and the lower end of pump barrel is connected with described oil drainer with box cupling by extension pipe successively, and the lower end of plunger is connected with plunger connector.
Be connected with box cupling of strike-ofing between pump box cupling and pump barrel, box cupling internal fixtion of above strike-ofing is provided with cup of strike-ofing; Be connected with down box cupling of strike-ofing between pump barrel and extension pipe, under box cupling internal fixtion of strike-ofing be provided with down cup of strike-ofing.
The lower end of described oil drainer is provided with two described standing valves setting up and down, the described standing valve on top is connected by the lower end of connecting short section with described oil drainer, the described standing valve on top is connected and fixed by the described standing valve of the 3rd valve base joint and bottom, and the lower end of the described standing valve of bottom is also provided with the 4th valve base joint.
The beneficial effects of the utility model are, can effectively prevent the eccentric wear of valve seat from missing, and reduce the wearing and tearing of valve seat, runner is large and closedown is timely, meanwhile, described long-plunger circulating pump can prevent sand grains from entering pump barrel, extends the working life of pump, reduce operating cost and cost for oil production, rate when improve oil well production.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further.
Fig. 1 is the structural representation of long-plunger circulating pump of the present utility model.
Fig. 2 is the structural representation of a long-plunger circulating pump part of the present utility model.
Fig. 3 is the structural representation of long-plunger circulating pump another part of the present utility model.
Fig. 4 is the structural representation of the traveling valve on top of the present utility model.
Fig. 5 is the structural representation that the first valve bonnet of the present utility model is connected with the first valve ball.
Fig. 6 is the plan view of the first valve bonnet of the present utility model.
Fig. 7 is the plan view of the first valve bonnet of the present utility model.
Fig. 8 is the structural representation of the first spring shield of the present utility model.
Fig. 9 is the plan view of the first spring shield of the present utility model.
Description of reference numerals:
1. rod connector, 2. the first valve body, 3. the first spring housing, 310. first upper spring covers, 320. first lower spring covers, 4. the first spring, 401. first spring shields, 411. through hole, positioning hole on 412., 5. the first push rod, 51. defining flanges, 6. the first valve bonnet, 61. through holes, 62. times positioning holes, 7. the first valve ball, 8. the first valve seat, 9. the first connecting body, 91. spacing fins, 10. the first valve base joint, 11. second valve bodies, 12. second spring housings, 13. second springs, 131. second spring shields, 14. second push rods, 15. second valve bonnets, 16. second valve balls, 17. second valve seats, 18. second connecting bodys, 19. second valve base joints, 20. plungers, 21. pump box cuplings, to strike-off on 22. cup, to strike-off on 23. box cupling, 24. pump barrels, 25. times box cuplings of strike-ofing, 26. times cups of strike-ofing, 27. extension pipes, 28. plunger connectors, 29. box cuplings, 30. oil drainer bodies, 31. copper sheathings, 32. connecting short sections, 33. the 3rd valve bodies, 34. the 3rd spring housings, 35. the 3rd springs, 351. the 3rd spring shields, 36. the 3rd push rods, 37. the 3rd valve bonnets, 38. the 3rd valve balls, 39. the 3rd valve seats, 40. the 3rd connecting bodys, 41. the 3rd valve base joints, 42. the 4th valve bodies, 43. the 4th spring housings, 44. the 4th springs, 441. the 4th spring shields, 45. the 4th push rods, 46. the 4th valve bonnets, 47. the 4th valve balls, 48. the 4th valve seats, 49. the 4th connecting bodys, 50. the 4th valve base joints.
Embodiment
In order to there be understanding clearly to technical characteristics of the present utility model, object and effect, now contrast accompanying drawing and embodiment of the present utility model is described.
As shown in Figure 1 to Figure 3, the utility model proposes a kind of long-plunger circulating pump, it comprises the plunger 20 of tubular and flip sleeve and is located at pump barrel 24 outside plunger 20, the upper end of plunger 20 is provided with at least one traveling valve, the lower end of pump barrel 24 is connected with oil drainer, the lower end of described oil drainer is provided with at least one standing valve, described traveling valve comprises the first valve body 2 of tubular, first valve body 2 internal fixtion is arranged with the first valve bonnet 6 and the first valve seat 8, first valve bonnet 6 of tubular is arranged on the first valve seat 8, and the dead in line of the axis of the first valve bonnet 6 and the first valve seat 8, the sidewall of the first valve bonnet 6 and the top of the first valve bonnet 6 are provided with the through hole 61 that can form runner, the diameter of the internal diameter and the first valve ball 7 that are provided with the first valve ball 7, first valve bonnet 6 in the first valve bonnet 6 matches, and the first valve ball 7 only can along the axially reciprocating of the first valve bonnet 6, and described traveling valve is identical with the structure of described standing valve.
In long-plunger circulating pump of the present utility model, first valve ball 7 only can to-and-fro motion vertically in the inner chamber of the first valve bonnet 6 by the restriction of the first valve bonnet 6, due to the inner chamber of the first valve bonnet 6 and the runner concentric of the first valve seat 8, therefore, the movement locus of the first valve ball 7 is positioned at directly over the runner of the first valve seat 8 just.When described traveling valve closes, described traveling valve is flowed through without oil, first valve ball 7 is due to the effect of self, axial downward movement in the first valve bonnet 6, because the first valve ball 7 cannot swing in the first valve bonnet 6, when the first valve ball 7 falls to the lower limit position of its axial motion, the runner of lucky shutoff first valve seat 8 of the first valve ball 7, as shown in Figures 1 and 2.When described traveling valve is opened, the first valve ball 7 leaves described lower limit position under the effect of oil stream, the flow passage that the runner of the first valve seat 8 can be formed with the through hole 61 of the first valve bonnet 6, and oily stream flows through described traveling valve.Because described traveling valve is identical with the structure of described standing valve, as shown in Figures 1 and 3, the working procedure of described standing valve is identical with described traveling valve.It can thus be appreciated that long-plunger circulating pump of the present utility model effectively can solve the eccentric wear leakage of valve seat, and the wear problem of valve seat, extends the working life of pump, reduce operating cost and cost for oil production, rate when improve oil well production.Wherein, the internal diameter of the first valve bonnet 6 and the diameter of the first valve ball 7 match, and namely the internal diameter of the first valve bonnet 6 is slightly larger than the diameter of the first valve ball 7.
As shown in Figure 4, the axis of the first valve body 2 is vertically arranged, the tubular that the first valve bonnet 6 opens for top closure bottom, and the through hole 61 being positioned at the first valve bonnet 6 top is communicated with formation inverted L shape structure with the through hole 61 being positioned at the first valve bonnet 6 side wall upper part; Annular space is provided with between the outer wall of the first valve bonnet 6 and the inwall of the first valve body 2.The upper extreme position that first valve ball 7 axially moves upward under the effect of oil stream is limited in the top that the first valve bonnet 6 is closed, because the first valve bonnet 6 is to the obstruction of the first valve ball 7, when first valve ball 7 falls to the first valve seat 8, impact force suffered by first valve seat 8 effectively reduces, thus reduce by the first valve seat 8 wearing and tearing in the process, extend the cycle of inspection pump, reduce cost for oil production, and improve the time rate of oil well production.
As shown in Figures 4 and 5, the through hole 61 being positioned at the first valve bonnet 6 side wall lower ends forms inverted U-shaped, and to guarantee that the first valve ball 7 is under the effect of oil stream, once leave the first valve seat 8, oil stream, namely by described traveling valve, enables described traveling valve express delivery open.In addition, as shown in Figure 6, first valve bonnet 6 is provided with multiple through hole 61, the through hole 61 of multiple described inverted L shape structure is uniformly distributed along the circumference of the first valve bonnet 6, and through hole 61 one_to_one corresponding of the through hole 61 of described inverted U-shaped and in the vertical direction and described inverted L shape structure, ensure that described traveling valve has larger circulation area, in like manner, the circulation area of described standing valve is also larger.Specifically as shown in Figure 7, the first valve bonnet 6 is provided with the through hole 61 of 8 inverted L shape structures and the through hole 61 of 8 described inverted U-shaped altogether, and their upper and lower one_to_one corresponding are arranged on the first valve bonnet 6.Meanwhile, the end of the end of through hole 61 and the through hole 61 of described inverted U-shaped that be positioned at the end of the through hole 61 at the first valve bonnet 6 top, are positioned at the first valve bonnet 6 side wall upper part is semicircular structure.
As shown in Fig. 4, Fig. 8 and Fig. 9, the first spring shield 401 is also fixedly installed in first valve body 2, the tubular that first spring shield 401 opens for top closure bottom, the external diameter of the first spring shield 401 and the internal diameter of the first valve body 2 match, and the through hole 411 being positioned at the first spring shield 401 top is communicated with formation inverted L shape structure with the through hole 411 being positioned at the first spring shield 401 side wall upper part; Concrete as shown in Figure 9, the through hole 411 the first spring shield 401 being provided with through hole 411,6 described inverted L shape structures of 6 described inverted L shape structures is uniformly distributed along the circumference of the first spring shield 401.Meanwhile, the end being positioned at the through hole 411 at the first spring shield 401 top and through hole 411 end being positioned at the first spring shield 401 side wall upper part are semicircular structure.First spring shield 401 is arranged at the top of the first valve bonnet 6, the top of the first spring shield 401 is provided with positioning hole 412, the top of the first valve bonnet 6 is provided with lower positioning hole 62, upper positioning hole 412 and interior slip of lower positioning hole 62 are provided with the first push rod 5 of energy contact first valve ball 7, the position of the first push rod 5 between upper positioning hole 412 and lower positioning hole 62 is provided with defining flange 51, and the external diameter of defining flange 51 is greater than the diameter of lower positioning hole 62; Be arranged with outside first push rod 5 that the first spring 4, first spring 4 for first push rod 5 that resets is arranged on the first spring shield 401 between top and defining flange 51; Specifically as shown in Fig. 7 and Fig. 9, upper positioning hole 412 and lower positioning hole 62 are arranged on the central position of the first spring shield 401 and the first valve bonnet 6 separately, by be positioned at the first valve bonnet 6 top through hole 61, be positioned at the through hole 411 at the first spring shield 401 top and be positioned at the through hole 411 of the first spring shield 401 side wall upper part, be positioned at the inner chamber of first valve body 2 on the first spring shield 401 top, the inner chamber of the first spring shield 401 be communicated with the epicoele of the first valve bonnet 6.When described traveling valve is opened, the oily stream in the runner of the first valve seat 8 can pass through the runner of runner through the first spring shield 401 of the first valve bonnet 6, by described traveling valve.In the process, the first valve ball 7 contact first push rod 5 axially upwards and compress the first spring 4.When closing described traveling valve, the first push rod 5, under the reset response of the first spring 4, promotes the first valve ball 7 and falls after rise to its lower limit position rapidly, makes described traveling valve can rapid closing, thus improves the closing velocity of described traveling valve.
As shown in Figure 8, first push rod 5 is outer is also arranged with the first spring housing 3, first spring housing 3 comprises the first upper spring cover 310 and the first lower spring cover 320, first upper spring cover 310 and the first lower spring cover 320 are positioned at the first spring shield 401, first upper spring cover 310 is positioned at the top of the first lower spring cover 320, the tubular that first upper spring cover 310 opens for top closure bottom, first lower spring cover 320 is the tubular of open top end bottom end closure, the upper end of the first spring 4 is plugged in the first upper spring cover 310, the lower end of the first spring 4 is plugged in the first lower spring cover 320, the top of 310 contact first spring shields 401 is overlapped in the upper end of the first spring 4 by the first upper spring, 320 contact defining flanges 51 are overlapped by the first lower spring in the lower end of the first spring 4.First upper spring cover 310 and the first lower spring cover 320 form the motion guide that the first spring 4 compresses and extends, by spacing for the first spring 4 elastic compression or elongation in the first upper spring cover 310 and the first lower spring cover 320, ensure that the first spring 4 is in the process compressed and extend, moving direction is unlikely to crooked, ensures consistent with the direction of spring force.
Described traveling valve also comprises the first connecting body 9 of tubular, the upper end of the first connecting body 9 is fixedly connected with the lower end of the first valve body 2, the inwall of the first connecting body 9 is provided with the spacing fin 91 that can limit the first valve seat 8 and move upward, the outer wall of the first valve seat 8 is provided with the annular groove matched with spacing fin 91, so that be located in the first valve body 2 by the first valve seat 8 fixed cover, the outer wall of the first valve seat 8 upper end is resisted against the inwall of the first connecting body 9 lower end.The inwall of spacing fin 91 and the outer wall of the first valve seat 8 also can be that other are suitable for using and are easy to the structure shape of manufacture.
In the embodiment of as shown in Figure 1, the upper end of plunger 20 is provided with two described traveling valves setting up and down, the cavity internal fixtion of the joint of the described traveling valve on top and the described traveling valve of bottom is provided with the first valve base joint 10, and the described traveling valve on top is connected and fixed with the described traveling valve of bottom by the first valve base joint 10, the lower end of the described traveling valve of bottom is connected and fixed with the upper end of plunger 20 by the second valve base joint 19 of tubular.Particularly, the described traveling valve on top comprises the first valve body 2, first spring housing 3, first spring 4, first spring shield 401, first push rod 5, first valve bonnet 6, first valve ball 7, first valve seat 8 and the first connecting body 9; The described traveling valve of bottom comprises the second valve body 11, second spring housing 12, second spring 13, second spring shield 131, second push rod 14, second valve bonnet 15, second valve ball 16, second valve seat 17 and the second connecting body 18.The upper end of the first valve base joint 10 connects the first connecting body 9 by outside thread, the lower end of the first valve base joint 10 connects the second valve body 11 by outside thread, meanwhile, the bottom that the top of the first valve base joint 10 is resisted against the first valve seat 8, first valve base joint 10 is resisted against the second spring shield 131; The top of the second valve base joint 19 is resisted against the second valve seat 17.
In a feasible mode of execution, the upper end of the described traveling valve on top is also provided with rod connector 1, rod connector 1 is provided with the inner chamber of connection first valve body 2 and the runner of described long-plunger circulating pump outside; Lower end contact first spring shield 401 of rod connector 1.
In the embodiment of as shown in Figures 2 and 3, the upper end of pump barrel 24 is connected with pump box cupling 21, and the lower end of pump barrel 24 is connected with described oil drainer with box cupling 29 by extension pipe 27 successively, and the lower end of plunger 20 is connected with plunger connector 28.Described oil drainer comprises the oil drainer body 30 of tubular, and the through hole internal fixtion of the sidewall of oil drainer body 30 is provided with copper sheathing 31.
In order to prevent sand grains from entering in pump barrel 24, plunger 20 length is greater than pump barrel 24, forms sealing; Between pump box cupling 21 and pump barrel 24, be connected with box cupling 23 of strike-ofing, box cupling 23 internal fixtion of above strike-ofing is provided with cup 22 of strike-ofing simultaneously; Be connected with down box cupling 25 of strike-ofing between pump barrel 24 and extension pipe 27, under box cupling 25 internal fixtion of strike-ofing be provided with down cup 26 of strike-ofing.
As shown in Figure 1, the lower end of described oil drainer is provided with two described standing valves setting up and down, the described standing valve on top is connected with the lower end of described oil drainer by connecting short section 32, the cavity internal fixtion of the joint of the described standing valve on top and the described standing valve of bottom is provided with the 3rd valve base joint 41, and the described standing valve on top is connected and fixed with the described standing valve of bottom by the 3rd valve base joint 41, the lower end of the described standing valve of bottom is also provided with the 4th valve base joint 50.Particularly, the described standing valve on top comprises the 3rd valve body 33, the 3rd spring housing 34, the 3rd spring 35, the 3rd spring shield 351, the 3rd push rod 36, the 3rd valve bonnet 37, the 3rd valve ball 38, the 3rd valve seat 39 and the 3rd connecting body 40; The described standing valve of bottom comprises the 4th valve body 42, the 4th spring housing 43, the 4th spring 44, the 4th spring shield 441, the 4th push rod 45, the 4th valve bonnet 46, the 4th valve ball 47, the 4th valve seat 48 and the 4th connecting body 49.The upper end of the 3rd valve base joint 41 connects the 3rd connecting body 40 by outside thread, the lower end of the 3rd valve base joint 41 connects the 4th valve body 42 by outside thread, meanwhile, the bottom that the top of the 3rd valve base joint 41 is resisted against the 3rd valve seat the 33, three valve base joint 41 is resisted against the 4th spring shield 441; The top of the 4th valve base joint 50 is resisted against the 4th valve seat 48.
Be example according to the embodiment shown in Fig. 1 to Fig. 9 below, working procedure of the present utility model is described.
Go into the well: G.I.H after being connected with tubing string by pump box cupling 21, entered for 20 times in pump barrel 24 by plunger after rod connector 1 being connected with sucker rod, plunger 20 moves up and down with described sucker rod again, and pump barrel 24 is not along with described sucker rod moves.
Upstroke: plunger 20 with in the up process of described sucker rod, the first valve ball 7 deadweight and the first spring 4 effect under close the first valve seat 8, second valve ball 16 conduct oneself with dignity and the second spring 13 effect under close the second valve seat 17; Under the effect of pump intake pressure, 4th valve ball 47, the 3rd valve ball 38 is up opens, liquid flows through the 4th valve base joint 50, the 4th valve seat 48, the 4th valve bonnet 46, annular space between the 4th valve body 42 and lower standing valve cover 46, the 3rd valve base joint 41, the 3rd valve seat 39, the 3rd valve body 37, annular space, connecting short section 32, oil drainer body 30 and extension pipe 27 between the 3rd valve body 33 and the 3rd valve bonnet 37 successively, until flow in pump barrel 24, complete feed liquor.
On strike-off cup 22 head of liquid in pump barrel 24 effect under, sealing pump barrel 24 and plunger 20 between gap, prevent the sand grains in liquid from entering.
Down stroke: plunger 20 with in the descending process of described sucker rod, the 4th valve ball 47 deadweight and the 4th spring 44 effect under close the 4th valve seat the 48, three valve ball 38 deadweight and the 3rd spring 35 effect under closedown the 3rd valve seat 39; Liquid flows through plunger connector 28, the annular space between plunger 20, second valve base joint 19, second valve seat 17, second valve bonnet 15, second valve body 11 and the second valve bonnet 15, the annular space between the first valve base joint 10, first valve seat 8, first valve bonnet 6, first valve body 2 and the first valve bonnet 6 successively, until flow out from the described runner the sidewall of rod connector 1, complete discharge opeing.
Under strike-off cup 26 fluid pressure in pump barrel 24 effect under, sealing pump barrel 24 and plunger 20 between gap, prevent the sand grains in liquid from entering.
From the above, the traveling valve that long-plunger circulating pump of the present utility model uses and standing valve, by the parts such as valve bonnet and push rod, reduce hunting range and the jumping height of valve ball, effectively can prevent the eccentric wear leakage loss of valve seat, and reduce the wearing and tearing of valve seat, meanwhile, can also effectively prevent sand grains from entering gap between pump barrel and plunger in upper and lower stroke, prevent holddown and plunger from pulling, extend the working life of pump, reduce operating cost and cost for oil production, rate when improve oil well production.
The foregoing is only the schematic embodiment of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.And it should be noted that, each constituent element of the present utility model is not limited in above-mentioned overall applicability, the each technical characteristics described in specification of the present utility model can select one to adopt separately or select the multinomial use that combines according to actual needs, therefore, the utility model naturally covers other relevant with this case innovative point and combines and embody rule.
Claims (10)
1. a long-plunger circulating pump, it is characterized in that, described long-plunger circulating pump comprises the plunger (20) of tubular and flip sleeve is located at plunger (20) pump barrel outward (24), the upper end of plunger (20) is provided with at least one traveling valve, the lower end of pump barrel (24) is connected with oil drainer, the lower end of described oil drainer is provided with at least one standing valve, described traveling valve comprises first valve body (2) of tubular, first valve body (2) internal fixtion is arranged with the first valve bonnet (6) and the first valve seat (8), first valve bonnet (6) of tubular is arranged on the first valve seat (8), and the dead in line of the axis of the first valve bonnet (6) and the first valve seat (8), the sidewall of the first valve bonnet (6) and the top of the first valve bonnet (6) are provided with the through hole (61) that can form runner, the first valve ball (7) is provided with in first valve bonnet (6), the internal diameter of the first valve bonnet (6) and the diameter of the first valve ball (7) match, first valve ball (7) only can along the axially reciprocating of the first valve bonnet (6), and described traveling valve is identical with the structure of described standing valve.
2. long-plunger circulating pump according to claim 1, it is characterized in that, the axis of the first valve body (2) is vertically arranged, the tubular that first valve bonnet (6) opens for top closure bottom, the through hole (61) being positioned at the first valve bonnet (6) top is communicated with formation inverted L shape structure with the through hole (61) being positioned at the first valve bonnet (6) side wall upper part; Annular space is provided with between the outer wall of the first valve bonnet (6) and the inwall of the first valve body (2).
3. long-plunger circulating pump according to claim 1, it is characterized in that, the first spring shield (401) is also fixedly installed in first valve body (2), the tubular that first spring shield (401) opens for top closure bottom, the external diameter of the first spring shield (401) and the internal diameter of the first valve body (2) match, and the through hole (411) being positioned at the first spring shield (401) top is communicated with formation inverted L shape structure with the through hole (411) being positioned at the first spring shield (401) side wall upper part, first spring shield (401) is arranged at the top of the first valve bonnet (6), the top of the first spring shield (401) is provided with positioning hole (412), the top of the first valve bonnet (6) is provided with lower positioning hole (62), upper positioning hole (412) and interior slip of lower positioning hole (62) are provided with first push rod (5) of energy contact first valve ball (7), the position of first push rod (5) between upper positioning hole (412) and lower positioning hole (62) is provided with defining flange (51), and the external diameter of defining flange (51) is greater than the diameter of lower positioning hole (62), be arranged with the first spring (4) for the first push rod (5) that resets outside first push rod (5), the first spring (4) is arranged between the top of the first spring shield (401) and defining flange (51).
4. long-plunger circulating pump according to claim 3, it is characterized in that, first push rod (5) is also arranged with the first upper spring cover (310) and the first lower spring cover (320) outward, first upper spring cover (310) and the first lower spring cover (320) are positioned at the first spring shield (401), first upper spring cover (310) is positioned at the top of the first lower spring cover (320), the tubular that first upper spring cover (310) opens for top closure bottom, the tubular that first lower spring cover (320) is open top end bottom end closure, the upper end of the first spring (4) is plugged in the first upper spring cover (310), the lower end of the first spring (4) is plugged in the first lower spring cover (320), the top of the first upper spring cover (310) contact first spring shield (401) is passed through in the upper end of the first spring (4), the lower end of the first spring (4) is by the first lower spring cover (320) contact defining flange (51).
5. long-plunger circulating pump according to claim 3, it is characterized in that, described traveling valve also comprises first connecting body (9) of tubular, the upper end of the first connecting body (9) is fixedly connected with the lower end of the first valve body (2), the inwall of the first connecting body (9) is provided with the spacing fin (91) that can limit the first valve seat (8) and move upward, the outer wall of the first valve seat (8) is provided with the annular groove matched with spacing fin (91).
6. long-plunger circulating pump according to claim 1, it is characterized in that, the upper end of plunger (20) is provided with two described traveling valves setting up and down, the described traveling valve on top is connected and fixed by the described traveling valve of the first valve base joint (10) with bottom, and the lower end of the described traveling valve of bottom is connected and fixed by second valve base joint (19) of tubular and the upper end of plunger (20).
7. long-plunger circulating pump according to claim 6, it is characterized in that, the upper end of the described traveling valve on top is also provided with rod connector (1), rod connector (1) is provided with the inner chamber of connection first valve body (2) and the runner of described long-plunger circulating pump outside.
8. long-plunger circulating pump according to claim 1, it is characterized in that, the upper end of pump barrel (24) is connected with pump box cupling (21), the lower end of pump barrel (24) is connected with described oil drainer with box cupling (29) by extension pipe (27) successively, and the lower end of plunger (20) is connected with plunger connector (28).
9. long-plunger circulating pump according to claim 8, it is characterized in that, be connected with box cupling of strike-ofing (23) between pump box cupling (21) and pump barrel (24), box cupling (23) internal fixtion of above strike-ofing is provided with cup of strike-ofing (22); Be connected with down box cupling of strike-ofing (25) between pump barrel (24) and extension pipe (27), under box cupling (25) internal fixtion of strike-ofing be provided with down cup of strike-ofing (26).
10. long-plunger circulating pump according to claim 8, it is characterized in that, the lower end of described oil drainer is provided with two described standing valves setting up and down, the described standing valve on top is connected with the lower end of described oil drainer by connecting short section (32), the described standing valve on top is connected and fixed by the described standing valve of the 3rd valve base joint (41) with bottom, and the lower end of the described standing valve of bottom is also provided with the 4th valve base joint (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499236.4U CN204827881U (en) | 2015-07-10 | 2015-07-10 | Long column stopper circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499236.4U CN204827881U (en) | 2015-07-10 | 2015-07-10 | Long column stopper circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827881U true CN204827881U (en) | 2015-12-02 |
Family
ID=54685489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520499236.4U Active CN204827881U (en) | 2015-07-10 | 2015-07-10 | Long column stopper circulating pump |
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| Country | Link |
|---|---|
| CN (1) | CN204827881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246138A (en) * | 2016-10-01 | 2016-12-21 | 中国石油化工股份有限公司 | Down-hole mechanical formula switching ball |
| CN113374677A (en) * | 2020-02-25 | 2021-09-10 | 中国石油天然气股份有限公司 | Sucker-rod pump with oil drainage mechanism |
-
2015
- 2015-07-10 CN CN201520499236.4U patent/CN204827881U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246138A (en) * | 2016-10-01 | 2016-12-21 | 中国石油化工股份有限公司 | Down-hole mechanical formula switching ball |
| CN113374677A (en) * | 2020-02-25 | 2021-09-10 | 中国石油天然气股份有限公司 | Sucker-rod pump with oil drainage mechanism |
| CN113374677B (en) * | 2020-02-25 | 2023-02-28 | 中国石油天然气股份有限公司 | Sucker-rod pump with oil drainage mechanism |
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