CN211009051U - Be suitable for high impurity quality of water plunger pump fluid end structure - Google Patents
Be suitable for high impurity quality of water plunger pump fluid end structure Download PDFInfo
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- CN211009051U CN211009051U CN201921855716.4U CN201921855716U CN211009051U CN 211009051 U CN211009051 U CN 211009051U CN 201921855716 U CN201921855716 U CN 201921855716U CN 211009051 U CN211009051 U CN 211009051U
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Abstract
The utility model discloses a be suitable for high impurity quality of water plunger pump fluid end structure, include: the liquid inlet valve is arranged in a liquid inlet channel formed in the pump head body; the liquid discharge valve is arranged in a liquid discharge channel formed in the pump head body; the plunger extends into a plunger cavity formed in the pump head body; the pump head body is a vertical pump head body; the liquid inlet channel formed in the vertical pump head body is a longitudinal channel, the liquid discharge channel formed in the vertical pump head body is a longitudinal channel, and the plunger cavity formed in the vertical pump head body is a transverse channel; the upper end of the liquid inlet channel is communicated with the lower end of the liquid discharge channel, and the transverse inner end of the plunger cavity is communicated with the upper end of the liquid inlet channel. The vertical hydraulic end water inlet and outlet valve is of a split type upper and lower structure, the valve core and the valve seat are sealed by conical surfaces, and the sealing performance is good. The valve core is opened and closed up and down by self gravity and hydraulic pressure, the spring plays an auxiliary role, and the problem that the pump valve fails due to spring breakage and falling of the valve plate does not exist.
Description
Technical Field
The utility model belongs to the technical field of oil field limit water reinjection plunger pump technique and specifically relates to a be suitable for high impurity quality of water plunger pump fluid end structure.
Background
At present, the recovery water rate of an oil field is continuously increased, and in order to solve the problem of recovery water treatment, most of the oil field adopts a mode of reinjecting to the edge of an oil layer. Because the water injection pressure is high, the adopted equipment is a plunger pump. The hydraulic end of the traditional plunger pump is of a horizontal combination valve structure, and the structure has high requirements on water quality. The oilfield reinjection water is not subjected to treatment measures such as oil removal and filtration, so that the oilfield reinjection water has the characteristics of high impurity content, high oil content, high mineralization degree, high temperature (60-70 ℃), strong corrosivity and the like. The reinjection water contains more oil and mechanical impurities, crude oil is adhered to the outer surface of the impurities, the pump valve plate is not tightly closed due to the adhesion of the impurities to the valve plate, the valve plate is punctured under high pressure, the pump effect is continuously reduced, the service life of the pump valve is short, in addition, the pump valve is opened and closed by a spring, the pump valve is frequently opened and closed by high-frequency opening and closing movement, faults such as fatigue fracture of the spring, tripping of a fixing screw of the valve plate and the like are often caused, the valve is failed, the leakage quantity is large, the equipment failure rate is high, the pump.
According to the statistical data, in the fault reasons of the horizontal plunger pump in the oil field water reinjection, the valve plate is punctured, the spring is broken, and the valve plate falls off to account for 92% of the total fault number, so that the maintenance period is about 7 days, and the plunger pump is not suitable for the oil field water reinjection working condition.
Through retrieval patent documents, the structural characteristics of the horizontal hydraulic end of the existing plunger pump are obviously different from those of the present patent, and the functions of the horizontal hydraulic end are not suitable for the working conditions of high oil content and high impurity content of reinjection water.
Application No.: 201810104478.7, filing date: 2018-02-02 discloses a plunger pump hydraulic end. Belongs to the technical field of mechanical engineering liquid pumps. The pressure bearing device is used for solving the problems of puncture, poor pressure bearing capacity, difficult replacement, high cost and short service life. The plunger pump hydraulic end is by the fluid cylinder, the valve seat, the gland and the piston is constituteed, and its improvement is: the cylinder sleeve is sleeved on the bidirectional outer conical surface inner lining sleeve through a left inner conical surface outer sleeve and a right inner conical surface outer sleeve through screw threads, the piston is installed in the bidirectional outer conical surface inner lining sleeve through a left outer conical surface inner core and a right outer conical surface inner core through screw threads, an annular groove is formed between the inner side surface of the hydraulic cylinder of the valve seat and the outer side surface of the hydraulic cylinder, and the gland is connected with the hydraulic cylinder through a sealing ring and an annular plate. The plunger pump can be widely applied to liquid pumps.
Application No.: 201721567739.6, filing date: 2017-11-21 discloses a plunger pump and a hydraulic end thereof, wherein the hydraulic end of the plunger pump comprises a main valve box, a plunger, a suction one-way valve, a discharge one-way valve and a low-pressure sand bag, the main valve box is provided with a plunger hole, a suction hole and a discharge hole, the plunger is arranged in the plunger hole in a sliding manner, the suction one-way valve is arranged in the suction hole in a sealing manner, the discharge one-way valve is arranged in the discharge hole in a sealing manner, and the low-pressure sand bag is connected to the outer end of the suction hole; the shutoff valve box is arranged between the main valve box and the low-pressure sand bag and is communicated with the suction hole and the low-pressure sand bag; the interception check valve is arranged in the interception valve box, and the interception check valve and the suction check valve have the same flow guide direction. The closure valve box and the closure one-way valve are additionally arranged to close the leaked high-pressure liquid flow, so that the probability that the high-pressure liquid flow enters the low-pressure sand bag and the low-pressure pipeline is reduced.
Application No.: 201710999740.4, filing date: 2017-10-24 disclose a hydraulic end assembly and a plunger pump comprising the same, the hydraulic end assembly comprises: the liquid suction valve is internally provided with a liquid suction valve cavity, and the liquid suction valve cavity is internally provided with a liquid suction valve core assembly; the liquid discharging valve is internally provided with a liquid discharging valve cavity which is internally provided with a liquid discharging valve core assembly; the liquid suction valve and the liquid discharge valve are arranged in parallel and are detachably connected, the liquid suction valve cavity is communicated with the liquid discharge valve cavity through the plunger cavity, the liquid suction valve core assembly is used for controlling the on-off of the liquid suction valve cavity and the plunger cavity to suck liquid, and the liquid discharge valve core assembly is used for controlling the on-off of the liquid discharge valve cavity and the plunger cavity to discharge liquid. The invention provides a hydraulic end assembly and a plunger pump comprising the same, solves the problems that the existing hydraulic end assembly is inconvenient to disassemble, assemble and maintain and the like, improves the over-flow rate and the volumetric efficiency, improves the performances of the hydraulic end assembly and the plunger pump, and meets the use requirements under complex working conditions.
Application No.: 201310351769.3, filing date: 2013-08-13 relates to a plunger pump hydraulic end device, which comprises a pump head body (3), a plug-in type combined valve (12), a packing box (7) and a plunger (10), wherein the pump head body (3) is provided with a suction inlet and a discharge outlet, the plug-in type combined valve (12) is arranged in the pump head body (3), and a liquid inlet cavity (1213) communicated with the suction inlet and a liquid discharge cavity (1215) communicated with the discharge outlet are formed between the pump head body (3) and the plug-in type combined valve (12); the end face of the packing box (7) is tightly attached to the pump head body (3), and the plunger (10) can move in the packing box (7) in a reciprocating manner; the cartridge type combination valve (12) comprises a pressing sleeve (1201), a valve core (1206), a suction valve (1208) and a discharge valve (1205). The invention improves the overflowing performance of the combined valve and the guiding performance among the discharge valve, the suction valve and the valve core, and has the advantages of simple and compact structure, small integral size of the pump head body, high hydraulic end volume efficiency, convenient assembly and disassembly, and quick maintenance and replacement.
Application No.: 201721824877.8 application date: 2017-12-22 disclose a plunger pump hydraulic end control system and a plunger pump, wherein, plunger pump hydraulic end control system includes valve box body and plunger, has seted up plunger hole, suction opening and discharge hole on the valve box body, and the plunger slides and sets up in the plunger is downthehole, still includes: a low pressure control valve disposed in the suction hole; a high pressure control valve provided in the discharge hole; and the control circuit assembly is connected with the low pressure control valve and the high pressure control valve and is used for opening the low pressure control valve and closing the high pressure control valve in the suction stroke of the plunger and closing the low pressure control valve and opening the high pressure control valve in the discharge stroke of the plunger. The low-pressure control valve and the high-pressure control valve can be forcibly opened and closed under the control of the control circuit assembly, have larger closing force, and can cut or push away large-particle-size particles clamped at the closed position, so that the normal closing of the high-pressure control valve and the low-pressure control valve is ensured, the failure of the plunger pump caused by the occurrence of a gasket clamping phenomenon is avoided, and the normal work of the plunger pump is ensured.
Application No.: 201810011132.2, filing date: 2018-01-05 relates to a plunger pump hydraulic end structure with multiple sealing effects, which comprises a pump head and a box body, wherein a plunger channel is arranged in the box body, a plunger is movably arranged in the plunger channel, a stuffing box is arranged around the plunger, a friction pair is formed by the stuffing box and the plunger, a main sealing element is arranged between the stuffing box and the plunger, a liquid discharge cavity, a liquid discharge valve bank, a liquid inlet valve bank and a liquid inlet cavity are arranged in the pump head, the reciprocating motion of the plunger drives the liquid inlet valve bank or the liquid discharge valve bank to open and close, the reciprocating circulation of liquid inlet and discharge is realized, a secondary sealing element is also arranged between the stuffing box and the plunger, and a backflow channel which flows back to the liquid inlet cavity. Compared with the prior art, the invention adopts the backflow channel, namely, leaked media are guided to the liquid inlet cavity and enter the pump head together with the media, and meanwhile, the sealing ring and the secondary sealing element are arranged at the rear side of the backflow channel, so that the liquid inlet cavity can be completely prevented from leaking to the outside through the backflow channel.
Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, to the utility model discloses more technical characteristics and the technical problem and the beneficial effect that will solve all do not have the technological inspiration in the above technical document that discloses.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be suitable for high impurity quality of water plunger pump fluid end structure, vertical fluid end water inlet and drain valve be split type upper and lower structure, and the case is sealed for the conical surface with the disk seat, and the leakproofness is good. The valve core is opened and closed up and down by self gravity and hydraulic pressure, the spring plays an auxiliary role, and the problem that the pump valve fails due to spring breakage and falling of the valve plate does not exist. In addition, when the valve core is closed, impurities can be crushed, and when the valve core is opened, the impurities are washed away by water.
In order to achieve the above object, the utility model discloses a following technical scheme, a be suitable for high impurity quality of water plunger pump fluid end structure, include:
the liquid inlet valve is arranged in a liquid inlet channel formed in the pump head body;
the liquid discharge valve is arranged in a liquid discharge channel formed in the pump head body;
the plunger extends into a plunger cavity formed in the pump head body;
the pump head body is a vertical pump head body;
the liquid inlet channel formed in the vertical pump head body is a longitudinal channel, the liquid discharge channel formed in the vertical pump head body is a longitudinal channel, and the plunger cavity formed in the vertical pump head body is a transverse channel;
the upper end of the liquid inlet channel is communicated with the lower end of the liquid discharge channel, and the transverse inner end of the plunger cavity is communicated with the upper end of the liquid inlet channel.
Further, the lower end of the liquid inlet channel is communicated with the liquid inlet channel, and the upper end of the liquid discharge channel is communicated with the liquid discharge channel.
Further, the feed valve includes:
the lower end face of the liquid inlet valve body and the upper end face of the inner ring platform arranged on the inner wall of the liquid inlet channel are sealed through a cloth clamping gasket;
the liquid inlet valve core is arranged in the inner cavity of the liquid inlet valve body and can axially slide relative to the sealing type.
Further, the feed valve includes:
the lower end of the liquid inlet valve core rod is connected with the upper end of the liquid inlet valve core;
the lower end of the liquid inlet valve spring is propped against an outer convex annular table arranged at the lower end of a valve core rod of the liquid inlet valve;
the lower end of the liquid inlet valve spring seat is supported at the upper end of a liquid inlet valve body, a guide hole is formed in the center of the liquid inlet valve spring seat, the upper end of a liquid inlet valve core rod extends into the guide hole as a guide rod, and the upper end of the liquid inlet valve spring abuts against the top end inside the liquid inlet valve spring seat.
Further, the feed valve includes:
the liquid inlet valve spring seat is pressed the cover, liquid inlet valve spring seat is pressed the cover lower extreme and is pushed down liquid inlet valve body upper end, and liquid inlet valve spring seat is pressed the cover inner wall and has been seted up the necking down platform, and the necking down platform is pushed down liquid inlet valve spring seat upper end.
Furthermore, the upper end of the valve core of the liquid inlet valve is provided with a radial extension annular table, and the outer diameter of the radial extension annular table is larger than the inner diameter of the valve body of the liquid inlet valve.
Further, the drain valve includes:
the lower end surface of the drain valve body and the upper end surface of the spring seat pressing sleeve of the liquid inlet valve are sealed by a cloth clamping pad;
the valve core of the drain valve is arranged in the inner cavity of the valve body of the drain valve and can axially slide relative to the sealing type.
Further, the drain valve includes:
the lower end of the valve core rod of the drain valve is connected with the upper end of the valve core of the drain valve;
the lower end of the liquid discharge valve spring is propped against an outer convex annular table arranged at the lower end of a valve core rod of the liquid discharge valve;
the lower end of the liquid discharge valve spring seat is supported at the upper end of a liquid discharge valve body, a guide hole is formed in the center of the liquid discharge valve spring seat, the upper end of a valve core rod of the liquid discharge valve extends into the guide hole as a guide rod, and the upper end of the liquid discharge valve spring abuts against the top end inside the liquid discharge valve spring seat.
Further, the drain valve includes:
the large gland, the feed liquor valve body upper end is pushed down to the large gland lower extreme, and the necking down platform has been seted up to the large gland inner wall, and the flowing back valve spring holder upper end is pushed down to the necking down platform, and large gland passes through connecting bolt to be fixed on vertical pump head body.
Furthermore, the upper end of the valve core of the liquid discharge valve is provided with a radial extension annular table, and the outer diameter of the radial extension annular table is larger than the inner diameter of the valve body of the liquid discharge valve.
Furthermore, a packing sleeve is sleeved outside the plunger, and a cloth clamping pad is arranged on the transverse inner end face of the packing sleeve and the edge of the outer port of the plunger cavity formed by the vertical pump head body for sealing.
Further, the filler is filled between the inner wall of the filler sleeve and the outer wall of the plunger.
Furthermore, a guide ring is arranged between the inner wall of the packing sleeve and the outer wall of the plunger piston.
Furthermore, the packing sleeve is fixed on the vertical pump head body through a compression flange.
Furthermore, the inner wall of the pressing flange and the outer wall of the packing sleeve are simultaneously provided with a transverse limiting step for clamping and limiting.
Compared with the prior art, the utility model following beneficial effect has:
the inner cavity of the vertical pump head body is designed into a horizontal and vertical cross structure from an original horizontal structure. The horizontal portion ensures horizontal movement of the plunger. The vertical part is an upper gland, a liquid discharge part, a discharge valve, a spacer bush, a suction valve and a liquid inlet part from top to bottom once and is a channel for water inlet and discharge. The front end of the pump head is also provided with a front gland, so that the plunger is simple and convenient to replace.
The pump valve and the pump head body are sealed by a compression cloth clamping pad, and the end cover and the pump head are sealed by an O-shaped ring, so that the high-pressure water is prevented from channeling and leaking.
The valve core moves up and down, and can be matched with the valve seat by the self gravity to realize the opening and closing of the valve. The sealing surface of the valve core and the valve seat is designed to be a conical surface, and the sealing effect is far higher than that of plane sealing of a horizontal structure. The impurities are easily broken when the valve is closed, and are taken away by water to be discharged when liquid is discharged. The valve core is provided with the auxiliary spring which plays a role in assisting the valve core to open and close, so that the valve core is closed more timely, leakage is reduced, and the pump efficiency is improved.
The valve core guide leg, namely the valve core rod, is provided with a deflection angle of 30 degrees, so that water flow drives the valve core to rotate when water enters and exits, and the service life of the valve core can be prolonged.
The utility model is suitable for an operating mode occasion of high impurity-containing water reinjection that does not pass through filtration treatment. The problems of short service life, large maintenance workload, low pump efficiency and high energy consumption of a pump valve at the horizontal hydraulic end of the plunger pump can be effectively solved.
Drawings
Fig. 1 is a schematic view of a cross-sectional structure of a hydraulic end structure of a plunger pump suitable for high impurity water quality.
In the figure: the device comprises a liquid inlet water channel 1, a cloth clamping pad 2, a liquid inlet valve body 3, a liquid inlet valve core 4, a liquid inlet valve core rod 5, a liquid inlet valve spring 6, a liquid inlet valve spring seat 7, a liquid inlet valve spring seat pressing sleeve 8, a cloth clamping pad 9, a liquid discharge valve body 10, a liquid discharge valve core 11, a liquid discharge valve core rod 12, a liquid discharge valve spring 13, a liquid discharge valve spring seat 14, a connecting bolt 15, a large gland 16, a liquid discharge water channel 17, a plunger 18, a pressing flange 19, a cloth clamping pad 20, a packing sleeve 21, a guide ring 22 and packing 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a be suitable for high impurity quality of water plunger pump fluid end structure, includes:
the liquid inlet valve is arranged in a liquid inlet channel formed in the pump head body;
the liquid discharge valve is arranged in a liquid discharge channel formed in the pump head body;
the plunger extends into a plunger cavity formed in the pump head body;
the pump head body is a vertical pump head body;
the liquid inlet channel formed in the vertical pump head body is a longitudinal channel, the liquid discharge channel formed in the vertical pump head body is a longitudinal channel, and the plunger cavity formed in the vertical pump head body is a transverse channel;
the upper end of the liquid inlet channel is communicated with the lower end of the liquid discharge channel, and the transverse inner end of the plunger cavity is communicated with the upper end of the liquid inlet channel.
Further, the lower end of the liquid inlet channel is communicated with the liquid inlet channel 1, and the upper end of the liquid discharge channel is communicated with the liquid discharge channel 17.
Further, the feed valve includes:
the lower end face of the liquid inlet valve body and the upper end face of an inner ring platform arranged on the inner wall of the liquid inlet channel are sealed through a cloth clamping pad 2;
and the liquid inlet valve core 4 is arranged in the inner cavity of the liquid inlet valve body and can axially slide relative to the sealing type.
Further, the feed valve includes:
the lower end of the liquid inlet valve core rod is connected with the upper end of the liquid inlet valve core;
the lower end of the liquid inlet valve spring is propped against an outer convex ring table arranged at the lower end of a valve core rod of the liquid inlet valve;
the liquid inlet valve is characterized by comprising a liquid inlet valve spring seat 7, wherein the lower end of the liquid inlet valve spring seat is propped against the upper end of a liquid inlet valve body, a guide hole is formed in the center of the liquid inlet valve spring seat, the upper end of a liquid inlet valve core rod extends into the guide hole as a guide rod, and the upper end of the liquid inlet valve spring is propped against the top end inside the liquid inlet valve spring seat.
Further, the feed valve includes:
feed liquor valve spring holder pressure cover 8, feed liquor valve spring holder pressure cover lower extreme pushes down feed liquor valve body upper end, and the necking down platform has been seted up to feed liquor valve spring holder pressure cover inner wall, and the necking down platform pushes down feed liquor valve spring holder upper end.
Furthermore, the upper end of the valve core of the liquid inlet valve is provided with a radial extension annular table, and the outer diameter of the radial extension annular table is larger than the inner diameter of the valve body of the liquid inlet valve.
Further, the drain valve includes:
the lower end face of the liquid discharge valve body and the upper end face of the liquid inlet valve spring seat pressing sleeve are sealed through a cloth clamping pad 9;
and the valve core 11 of the drain valve is arranged in the inner cavity of the valve body of the drain valve and can axially slide relative to the sealing type.
Further, the drain valve includes:
the lower end of the valve core rod of the drain valve is connected with the upper end of the valve core of the drain valve;
the lower end of the liquid discharge valve spring 13 is propped against an outer convex annular table arranged at the lower end of a valve core rod of the liquid discharge valve;
and the lower end of the drainage valve spring seat is propped against the upper end of the valve body of the drainage valve, a guide hole is formed in the center of the drainage valve spring seat, the upper end of the valve core rod of the drainage valve extends into the guide hole as a guide rod, and the upper end of the drainage valve spring props against the top end inside the drainage valve spring seat.
Further, the drain valve includes:
the lower end of the large gland presses the upper end of the liquid inlet valve body, the inner wall of the large gland is provided with a necking table, the necking table presses the upper end of a spring seat of the liquid discharge valve, and the large gland is fixed on the vertical pump head body through a connecting bolt 15.
Furthermore, the upper end of the valve core of the liquid discharge valve is provided with a radial extension annular table, and the outer diameter of the radial extension annular table is larger than the inner diameter of the valve body of the liquid discharge valve.
Furthermore, a packing sleeve 21 is sleeved outside the plunger 18, and a cloth clamping pad 20 is arranged on the transverse inner end surface of the packing sleeve and the edge of the outer port of the plunger cavity formed by the vertical pump head body for sealing.
Further, a filler 23 is filled between the inner wall of the filler sleeve and the outer wall of the plunger.
Further, a guide ring 22 is arranged between the inner wall of the packing sleeve and the outer wall of the plunger.
Further, the packing sleeve is fixed on the vertical pump head body through a compression flange 19.
Furthermore, the inner wall of the pressing flange and the outer wall of the packing sleeve are simultaneously provided with a transverse limiting step for clamping and limiting.
The vertical hydraulic end structure comprises a vertical pump head body, a stuffing box assembly, a vertical water inlet valve, a vertical water discharge valve, a top large gland, a front gland, a water inlet assembly, a water discharge assembly and other accessories. The interior of the water-saving valve is sequentially provided with an upper gland, a drainage assembly, a drain valve assembly, a valve seat spacer bush, a liquid inlet valve assembly and a water inlet assembly from top to bottom. The hydraulic end is connected with the power end into a whole through a bolt
The left side is provided with a stuffing box assembly, one end of the stuffing box assembly is connected to the vertical pump head body assembly through a bolt, the other end of the stuffing box assembly is connected with the power end, and the stuffing box assembly reciprocates under the driving of the power end.
The working principle of the vertical hydraulic end is similar to that of the horizontal hydraulic end, and the difference is that the original horizontal combined valve structure is changed into a split vertical water inlet valve and a split vertical water discharge valve. The valve core moves up and down to be opened and closed by the gravity of the valve core and the pressure of liquid, and the spring plays a role of an auxiliary switch. When the plunger moves backwards, the pressure in the cavity is reduced, the valve core of the discharge valve is closed under the action of the gravity of the valve core and the pressure of the outlet, the water at the water inlet pushes the valve core of the water inlet valve, and the water enters the space vacated by the plunger. When the plunger moves forwards, the pressure in the cavity rises, the valve core of the water inlet valve is closed under the action of the gravity and the hydraulic pressure of the water inlet valve, and the valve core of the discharge valve is jacked open by the hydraulic pressure to discharge water entering the cavity. The suction valve and the discharge valve are opened and closed alternately to complete water intake and discharge.
The packing box, the water inlet valve, the water discharge valve and the vertical pump head body are sealed by a compressed cloth clamping pad, so that water is prevented from channeling, leaking and losing. The gland is sealed with the hydraulic end by an O-ring and is connected and fixed by a bolt.
The utility model is suitable for an operating mode occasion of high impurity-containing water reinjection that does not pass through filtration treatment. The problems of short service life, large maintenance workload, low pump efficiency and high energy consumption of a pump valve at the horizontal hydraulic end of the plunger pump can be effectively solved.
Example 2:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a be suitable for high impurity quality of water plunger pump fluid end structure, includes:
the liquid inlet valve is arranged in a liquid inlet channel formed in the pump head body;
the liquid discharge valve is arranged in a liquid discharge channel formed in the pump head body;
the plunger extends into a plunger cavity formed in the pump head body;
the pump head body is a vertical pump head body;
the liquid inlet channel formed in the vertical pump head body is a longitudinal channel, the liquid discharge channel formed in the vertical pump head body is a longitudinal channel, and the plunger cavity formed in the vertical pump head body is a transverse channel;
the upper end of the liquid inlet channel is communicated with the lower end of the liquid discharge channel, and the transverse inner end of the plunger cavity is communicated with the upper end of the liquid inlet channel.
Further, the lower end of the liquid inlet channel is communicated with the liquid inlet channel 1, and the upper end of the liquid discharge channel is communicated with the liquid discharge channel 17.
Further, the feed valve includes:
the lower end face of the liquid inlet valve body and the upper end face of an inner ring platform arranged on the inner wall of the liquid inlet channel are sealed through a cloth clamping pad 2;
and the liquid inlet valve core 4 is arranged in the inner cavity of the liquid inlet valve body and can axially slide relative to the sealing type.
Further, the feed valve includes:
the lower end of the liquid inlet valve core rod is connected with the upper end of the liquid inlet valve core;
the lower end of the liquid inlet valve spring is propped against an outer convex ring table arranged at the lower end of a valve core rod of the liquid inlet valve;
the liquid inlet valve is characterized by comprising a liquid inlet valve spring seat 7, wherein the lower end of the liquid inlet valve spring seat is propped against the upper end of a liquid inlet valve body, a guide hole is formed in the center of the liquid inlet valve spring seat, the upper end of a liquid inlet valve core rod extends into the guide hole as a guide rod, and the upper end of the liquid inlet valve spring is propped against the top end inside the liquid inlet valve spring seat.
Further, the feed valve includes:
feed liquor valve spring holder pressure cover 8, feed liquor valve spring holder pressure cover lower extreme pushes down feed liquor valve body upper end, and the necking down platform has been seted up to feed liquor valve spring holder pressure cover inner wall, and the necking down platform pushes down feed liquor valve spring holder upper end.
Furthermore, the upper end of the valve core of the liquid inlet valve is provided with a radial extension annular table, and the outer diameter of the radial extension annular table is larger than the inner diameter of the valve body of the liquid inlet valve.
Further, the drain valve includes:
the lower end face of the liquid discharge valve body and the upper end face of the liquid inlet valve spring seat pressing sleeve are sealed through a cloth clamping pad 9;
and the valve core 11 of the drain valve is arranged in the inner cavity of the valve body of the drain valve and can axially slide relative to the sealing type.
Further, the drain valve includes:
the lower end of the valve core rod of the drain valve is connected with the upper end of the valve core of the drain valve;
the lower end of the liquid discharge valve spring 13 is propped against an outer convex annular table arranged at the lower end of a valve core rod of the liquid discharge valve;
and the lower end of the drainage valve spring seat is propped against the upper end of the valve body of the drainage valve, a guide hole is formed in the center of the drainage valve spring seat, the upper end of the valve core rod of the drainage valve extends into the guide hole as a guide rod, and the upper end of the drainage valve spring props against the top end inside the drainage valve spring seat.
Further, the drain valve includes:
the lower end of the large gland presses the upper end of the liquid inlet valve body, the inner wall of the large gland is provided with a necking table, the necking table presses the upper end of a spring seat of the liquid discharge valve, and the large gland is fixed on the vertical pump head body through a connecting bolt 15.
Furthermore, the upper end of the valve core of the liquid discharge valve is provided with a radial extension annular table, and the outer diameter of the radial extension annular table is larger than the inner diameter of the valve body of the liquid discharge valve.
Furthermore, a packing sleeve 21 is sleeved outside the plunger 18, and a cloth clamping pad 20 is arranged on the transverse inner end surface of the packing sleeve and the edge of the outer port of the plunger cavity formed by the vertical pump head body for sealing.
Further, a filler 23 is filled between the inner wall of the filler sleeve and the outer wall of the plunger.
Further, a guide ring 22 is arranged between the inner wall of the packing sleeve and the outer wall of the plunger.
Example 3:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a be suitable for high impurity quality of water plunger pump fluid end structure, includes:
the liquid inlet valve is arranged in a liquid inlet channel formed in the pump head body;
the liquid discharge valve is arranged in a liquid discharge channel formed in the pump head body;
the plunger extends into a plunger cavity formed in the pump head body;
the pump head body is a vertical pump head body;
the liquid inlet channel formed in the vertical pump head body is a longitudinal channel, the liquid discharge channel formed in the vertical pump head body is a longitudinal channel, and the plunger cavity formed in the vertical pump head body is a transverse channel;
the upper end of the liquid inlet channel is communicated with the lower end of the liquid discharge channel, and the transverse inner end of the plunger cavity is communicated with the upper end of the liquid inlet channel.
Further, the lower end of the liquid inlet channel is communicated with the liquid inlet channel 1, and the upper end of the liquid discharge channel is communicated with the liquid discharge channel 17.
Further, the feed valve includes:
the lower end face of the liquid inlet valve body and the upper end face of an inner ring platform arranged on the inner wall of the liquid inlet channel are sealed through a cloth clamping pad 2;
and the liquid inlet valve core 4 is arranged in the inner cavity of the liquid inlet valve body and can axially slide relative to the sealing type.
Further, the feed valve includes:
the lower end of the liquid inlet valve core rod is connected with the upper end of the liquid inlet valve core;
the lower end of the liquid inlet valve spring is propped against an outer convex ring table arranged at the lower end of a valve core rod of the liquid inlet valve;
the liquid inlet valve is characterized by comprising a liquid inlet valve spring seat 7, wherein the lower end of the liquid inlet valve spring seat is propped against the upper end of a liquid inlet valve body, a guide hole is formed in the center of the liquid inlet valve spring seat, the upper end of a liquid inlet valve core rod extends into the guide hole as a guide rod, and the upper end of the liquid inlet valve spring is propped against the top end inside the liquid inlet valve spring seat.
Further, the feed valve includes:
feed liquor valve spring holder pressure cover 8, feed liquor valve spring holder pressure cover lower extreme pushes down feed liquor valve body upper end, and the necking down platform has been seted up to feed liquor valve spring holder pressure cover inner wall, and the necking down platform pushes down feed liquor valve spring holder upper end.
Furthermore, the upper end of the valve core of the liquid inlet valve is provided with a radial extension annular table, and the outer diameter of the radial extension annular table is larger than the inner diameter of the valve body of the liquid inlet valve.
Further, the drain valve includes:
the lower end face of the liquid discharge valve body and the upper end face of the liquid inlet valve spring seat pressing sleeve are sealed through a cloth clamping pad 9;
and the valve core 11 of the drain valve is arranged in the inner cavity of the valve body of the drain valve and can axially slide relative to the sealing type.
Further, the drain valve includes:
the lower end of the valve core rod of the drain valve is connected with the upper end of the valve core of the drain valve;
the lower end of the liquid discharge valve spring 13 is propped against an outer convex annular table arranged at the lower end of a valve core rod of the liquid discharge valve;
and the lower end of the drainage valve spring seat is propped against the upper end of the valve body of the drainage valve, a guide hole is formed in the center of the drainage valve spring seat, the upper end of the valve core rod of the drainage valve extends into the guide hole as a guide rod, and the upper end of the drainage valve spring props against the top end inside the drainage valve spring seat.
Further, the drain valve includes:
the lower end of the large gland presses the upper end of the liquid inlet valve body, the inner wall of the large gland is provided with a necking table, the necking table presses the upper end of a spring seat of the liquid discharge valve, and the large gland is fixed on the vertical pump head body through a connecting bolt 15.
Furthermore, the upper end of the valve core of the liquid discharge valve is provided with a radial extension annular table, and the outer diameter of the radial extension annular table is larger than the inner diameter of the valve body of the liquid discharge valve.
Example 4:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a be suitable for high impurity quality of water plunger pump fluid end structure, includes:
the liquid inlet valve is arranged in a liquid inlet channel formed in the pump head body;
the liquid discharge valve is arranged in a liquid discharge channel formed in the pump head body;
the plunger extends into a plunger cavity formed in the pump head body;
the pump head body is a vertical pump head body;
the liquid inlet channel formed in the vertical pump head body is a longitudinal channel, the liquid discharge channel formed in the vertical pump head body is a longitudinal channel, and the plunger cavity formed in the vertical pump head body is a transverse channel;
the upper end of the liquid inlet channel is communicated with the lower end of the liquid discharge channel, and the transverse inner end of the plunger cavity is communicated with the upper end of the liquid inlet channel.
Further, the lower end of the liquid inlet channel is communicated with the liquid inlet channel 1, and the upper end of the liquid discharge channel is communicated with the liquid discharge channel 17.
Further, the feed valve includes:
the lower end face of the liquid inlet valve body and the upper end face of an inner ring platform arranged on the inner wall of the liquid inlet channel are sealed through a cloth clamping pad 2;
and the liquid inlet valve core 4 is arranged in the inner cavity of the liquid inlet valve body and can axially slide relative to the sealing type.
Further, the feed valve includes:
the lower end of the liquid inlet valve core rod is connected with the upper end of the liquid inlet valve core;
the lower end of the liquid inlet valve spring is propped against an outer convex ring table arranged at the lower end of a valve core rod of the liquid inlet valve;
the liquid inlet valve is characterized by comprising a liquid inlet valve spring seat 7, wherein the lower end of the liquid inlet valve spring seat is propped against the upper end of a liquid inlet valve body, a guide hole is formed in the center of the liquid inlet valve spring seat, the upper end of a liquid inlet valve core rod extends into the guide hole as a guide rod, and the upper end of the liquid inlet valve spring is propped against the top end inside the liquid inlet valve spring seat.
Further, the feed valve includes:
feed liquor valve spring holder pressure cover 8, feed liquor valve spring holder pressure cover lower extreme pushes down feed liquor valve body upper end, and the necking down platform has been seted up to feed liquor valve spring holder pressure cover inner wall, and the necking down platform pushes down feed liquor valve spring holder upper end.
Furthermore, the upper end of the valve core of the liquid inlet valve is provided with a radial extension annular table, and the outer diameter of the radial extension annular table is larger than the inner diameter of the valve body of the liquid inlet valve.
Example 5:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a be suitable for high impurity quality of water plunger pump fluid end structure, includes:
the liquid inlet valve is arranged in a liquid inlet channel formed in the pump head body;
the liquid discharge valve is arranged in a liquid discharge channel formed in the pump head body;
the plunger extends into a plunger cavity formed in the pump head body;
the pump head body is a vertical pump head body;
the liquid inlet channel formed in the vertical pump head body is a longitudinal channel, the liquid discharge channel formed in the vertical pump head body is a longitudinal channel, and the plunger cavity formed in the vertical pump head body is a transverse channel;
the upper end of the liquid inlet channel is communicated with the lower end of the liquid discharge channel, and the transverse inner end of the plunger cavity is communicated with the upper end of the liquid inlet channel.
Further, the lower end of the liquid inlet channel is communicated with the liquid inlet channel 1, and the upper end of the liquid discharge channel is communicated with the liquid discharge channel 17.
Example 6:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a be suitable for high impurity quality of water plunger pump fluid end structure, includes:
the liquid inlet valve is arranged in a liquid inlet channel formed in the pump head body;
the liquid discharge valve is arranged in a liquid discharge channel formed in the pump head body;
the plunger extends into a plunger cavity formed in the pump head body;
the pump head body is a vertical pump head body;
the liquid inlet channel formed in the vertical pump head body is a longitudinal channel, the liquid discharge channel formed in the vertical pump head body is a longitudinal channel, and the plunger cavity formed in the vertical pump head body is a transverse channel;
the upper end of the liquid inlet channel is communicated with the lower end of the liquid discharge channel, and the transverse inner end of the plunger cavity is communicated with the upper end of the liquid inlet channel.
Although fig. 1 is used for all the above embodiments, it is obvious to those skilled in the art that a separate drawing is not shown as long as the parts or structural features missing in the embodiments are removed from the drawing. As will be clear to the skilled person. Of course, the embodiments with more components are only the preferred embodiments, and the embodiments with fewer components are the basic embodiments, but the basic objects of the invention can also be achieved, so all of them are within the protection scope of the present invention.
All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.
In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. The utility model provides a be suitable for high impurity quality of water plunger pump fluid end structure, includes:
the liquid inlet valve is arranged in a liquid inlet channel formed in the pump head body;
the liquid discharge valve is arranged in a liquid discharge channel formed in the pump head body;
the plunger extends into a plunger cavity formed in the pump head body;
the pump head is characterized in that the pump head body is a vertical pump head body;
the liquid inlet channel formed in the vertical pump head body is a longitudinal channel, the liquid discharge channel formed in the vertical pump head body is a longitudinal channel, and the plunger cavity formed in the vertical pump head body is a transverse channel;
the upper end of the liquid inlet channel is communicated with the lower end of the liquid discharge channel, and the transverse inner end of the plunger cavity is communicated with the upper end of the liquid inlet channel.
2. The plunger pump fluid end structure suitable for high impurity water quality as claimed in claim 1, wherein the lower end of the liquid inlet channel is communicated with the liquid inlet channel, and the upper end of the liquid outlet channel is communicated with the liquid outlet channel.
3. The plunger pump hydraulic end structure suitable for high impurity water quality according to claim 1 or 2, characterized in that the liquid inlet valve comprises:
the lower end face of the liquid inlet valve body and the upper end face of the inner ring platform arranged on the inner wall of the liquid inlet channel are sealed through a cloth clamping gasket;
the liquid inlet valve core is arranged in the inner cavity of the liquid inlet valve body and can axially slide relative to the sealing type.
4. The hydraulic end structure of the plunger pump suitable for high impurity water quality as claimed in claim 3, wherein the liquid inlet valve comprises:
the lower end of the liquid inlet valve core rod is connected with the upper end of the liquid inlet valve core;
the lower end of the liquid inlet valve spring is propped against an outer convex annular table arranged at the lower end of a valve core rod of the liquid inlet valve;
the lower end of the liquid inlet valve spring seat is supported at the upper end of a liquid inlet valve body, a guide hole is formed in the center of the liquid inlet valve spring seat, the upper end of a liquid inlet valve core rod extends into the guide hole as a guide rod, and the upper end of the liquid inlet valve spring abuts against the top end inside the liquid inlet valve spring seat.
5. The hydraulic end structure of the plunger pump suitable for high impurity water quality as claimed in claim 4, wherein the liquid inlet valve comprises:
the liquid inlet valve spring seat is pressed the cover, liquid inlet valve spring seat is pressed the cover lower extreme and is pushed down liquid inlet valve body upper end, and liquid inlet valve spring seat is pressed the cover inner wall and has been seted up the necking down platform, and the necking down platform is pushed down liquid inlet valve spring seat upper end.
6. The hydraulic end structure of the plunger pump suitable for high impurity water quality according to claim 5, wherein a radially outward extending annular table is arranged at the upper end of the valve core of the liquid inlet valve, and the outer diameter of the radially outward extending annular table is larger than the inner diameter of the valve body of the liquid inlet valve.
7. The plunger pump hydraulic end structure suitable for high impurity water quality as claimed in claim 5 or 6, wherein the drain valve comprises:
the lower end surface of the drain valve body and the upper end surface of the spring seat pressing sleeve of the liquid inlet valve are sealed by a cloth clamping pad;
the valve core of the drain valve is arranged in the inner cavity of the valve body of the drain valve and can axially slide relative to the sealing type.
8. The plunger pump hydraulic end structure suitable for high impurity water quality as claimed in claim 7, wherein the drain valve comprises:
the lower end of the valve core rod of the drain valve is connected with the upper end of the valve core of the drain valve;
the lower end of the liquid discharge valve spring is propped against an outer convex annular table arranged at the lower end of a valve core rod of the liquid discharge valve;
the lower end of the liquid discharge valve spring seat is supported at the upper end of a liquid discharge valve body, a guide hole is formed in the center of the liquid discharge valve spring seat, the upper end of a valve core rod of the liquid discharge valve extends into the guide hole as a guide rod, and the upper end of the liquid discharge valve spring abuts against the top end inside the liquid discharge valve spring seat.
9. The plunger pump hydraulic end structure suitable for high impurity water quality as claimed in claim 8, wherein the drain valve comprises:
the large gland, the feed liquor valve body upper end is pushed down to the large gland lower extreme, and the necking down platform has been seted up to the large gland inner wall, and the flowing back valve spring holder upper end is pushed down to the necking down platform, and large gland passes through connecting bolt to be fixed on vertical pump head body.
10. The plunger pump hydraulic end structure suitable for high impurity water quality according to claim 9, wherein a radially outward extending annular table is arranged at the upper end of the valve core of the drain valve, and the outer diameter of the radially outward extending annular table is larger than the inner diameter of the valve body of the drain valve.
11. The hydraulic end structure of the plunger pump suitable for high impurity water quality according to claim 9, wherein a packing sleeve is sleeved outside the plunger, and a cloth clamping pad is installed on the transverse inner end surface of the packing sleeve and the edge of the outer end opening of the plunger cavity formed in the vertical pump head body for sealing.
12. The hydraulic end structure of the plunger pump suitable for high impurity water quality as claimed in claim 11, wherein a filler is filled between the inner wall of the filler sleeve and the outer wall of the plunger.
13. The hydraulic end structure of the plunger pump suitable for high impurity water quality as claimed in claim 11, wherein a guide ring is further installed between the inner wall of the packing sleeve and the outer wall of the plunger.
14. The hydraulic end structure of the plunger pump suitable for high impurity water quality as claimed in claim 11, wherein the packing sleeve is fixed on the vertical pump head body through a compression flange.
15. The hydraulic end structure of the plunger pump suitable for high impurity water quality as claimed in claim 14, wherein the inner wall of the pressing flange and the outer wall of the packing sleeve are simultaneously provided with a transverse limiting step for clamping and limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855716.4U CN211009051U (en) | 2019-10-30 | 2019-10-30 | Be suitable for high impurity quality of water plunger pump fluid end structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921855716.4U CN211009051U (en) | 2019-10-30 | 2019-10-30 | Be suitable for high impurity quality of water plunger pump fluid end structure |
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| CN211009051U true CN211009051U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074107A (en) * | 2021-05-07 | 2021-07-06 | 大庆市金拓石油机械制造有限公司 | Hydraulic end of reciprocating pump |
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2019
- 2019-10-30 CN CN201921855716.4U patent/CN211009051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074107A (en) * | 2021-05-07 | 2021-07-06 | 大庆市金拓石油机械制造有限公司 | Hydraulic end of reciprocating pump |
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