CN215672662U

CN215672662U - Adjustable sealing box for oilfield injection pump jigger

Info

Publication number: CN215672662U
Application number: CN202121974469.7U
Authority: CN
Inventors: 孙志刚; 王亮; 王庆辉; 罗银浩; 段琴; 郭金然; 张爱军
Original assignee: Gudong Petroleum Production Factory Shengli Oilfield Of Sinopec; China Petroleum and Chemical Corp
Current assignee: Gudong Petroleum Production Factory Shengli Oilfield Of Sinopec; China Petroleum and Chemical Corp
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-28
Anticipated expiration: 2031-08-23

Abstract

The utility model provides an oil field is annotated and is gathered supplementary gland of components of a whole that can function independently (1) of pump jigger regulation formula sealing box establishes on plunger (12), be located between pressure cap (2) and connecting clip (8), sealing box (5) left end is entangled in pump body gland (14), pass pump body gland (14) through connecting bolt (10) and be connected with pump body (15), be equipped with sealing filler (4) in sealing box (5), the right-hand member and the pressure cap (2) threaded connection of sealing box (5), pressure cap (2) are with inner gland (3), sealing filler (4) compress tightly, plunger (12) are followed sealing filler (4), pressure cap (2), inner gland (3) center passes, the left end of plunger (12) is connected with connecting rod (11) through connecting clip (8). The utility model adjusts the sealing box of the polymer injection pump, reduces the leakage of the sealing box, prevents eccentric wear and heating of the plunger, reduces the load of the polymer injection pump, has safe operation, avoids equipment damage, tool falling and slipping, and human injury accidents, saves energy, and improves the operation rate and the polymer injection effect.

Description

Adjustable sealing box for oilfield injection pump jigger

Technical Field

The utility model belongs to the technical field of mechanical adjustment of pump sealing boxes, and particularly relates to an adjustable sealing box of an oilfield polymer injection pump jigger.

Background

In the production process of tertiary oil recovery in oil field development, the ground system for injection and polymerization is the most main part for realizing the injection and polymerization process, it is composed of multiple equipments and devices, and can meet a series of production process requirements of on-site liquid preparation, curing, transferring and pressurized injection of polymer, and the injection and polymerization pump is the key equipment for realizing the purpose, the plunger pump is mainly a 3ZJ type three plunger pump produced by victory oil field main unit, all the plunger pumps are sealed by adopting packing, 5 packing are added in the middle of 2 bakelite sleeves, the gland is extruded by adjusting nut, the bakelite sleeve and packing are extruded by gland to achieve the sealing purpose, the loss of packing is adjusted by generally using modes of distinguishing, smashing and the like on-site, and the defect of the adjusting method is that: the packing gland is extruded by the nut, the packing is secondarily extruded by the gland, the force is dispersed, all useful work is difficult to reach an ideal point, the eccentric wear of the plunger is easy to cause, and the plunger is seriously damaged after the temperature of the packing is raised; when the packing is adjusted, the tool is easy to be separated from the packing to hurt people, and great potential safety hazard exists.

The following disadvantages are mainly present in the production process:

(1) the packing near the outer side of the packing box is stressed maximally 1.25 times that of the packing at the bottom, so that the packing is easy to damage and the mother liquor is seriously punctured.

(2) The adjusting method is single, the pressure is transmitted to the gland by the nut, the gland extrudes the packing by the bakelite sleeve to achieve the sealing purpose, the method has the advantages of force dispersion, gradual reduction of the pressure and great adjusting difficulty.

(3) The plunger is easy to be eccentric and generate heat, the load of the polymer injection pump is increased, and the running rate and the polymer injection effect are reduced.

(4) The fastening modes of smashing, distinguishing and the like are easy to damage tools and equipment.

(5) The security is poor, and when fastening the packing, the instrument drops easily, skids, takes place the injury accident.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects, provides an adjustable sealing box of an oilfield injection pump jigger, and solves the problems that an injection pump extrudes a packing gland through a nut, the gland secondarily extrudes a packing, the eccentric wear of a plunger is easily caused, the plunger is seriously damaged after the temperature of the packing is raised, a tool is easily pulled out to hurt people when the packing is adjusted, and great potential safety hazards exist.

The purpose of the utility model is realized by the following technical scheme:

the utility model comprises the following steps: the utility model provides an oil field is annotated and is gathered pump jigger regulation formula seal box, includes: the pump body comprises a split auxiliary gland, a pressing cap, an inner gland, sealing filler, a sealing box, a sealing ring I, a sealing ring II, a connecting clamp, a connecting pin, a connecting bolt, a connecting rod, a plunger, a fixing bolt, a pump body gland and a pump body; the method is characterized in that: the split auxiliary gland is arranged on the plunger and located between the pressing cap and the connecting clip, the left end of the sealing box is sleeved by the pump body gland, the pump body gland penetrates through the pump body gland through the connecting bolt to be connected with the pump body, sealing packing is arranged in the sealing box, the right end of the sealing box is in threaded connection with the pressing cap, the pressing cap compresses the inner gland and the sealing packing, the plunger penetrates through the centers of the sealing packing, the pressing cap and the inner gland, and the left end of the plunger is connected with the connecting rod through the connecting clip.

Furthermore, the split auxiliary gland is cylindrical and has a two-half structure, one half of a contact surface of the split auxiliary gland is provided with a dovetail groove, the other half of the contact surface is provided with a dovetail, so that a dovetail buckle-plug connection is formed, a central hole is slightly larger than the diameter of the plunger, and the outer diameter of the central hole is the same as that of the inner gland.

Furthermore, the pressure cap is cylindrical, an inner hole in the left part is provided with an inner thread matched with the sealing box, an inner hole in the right end is provided with an annular boss, the diameter of the inner hole is slightly larger than that of the inner gland, and four blind holes are uniformly distributed in the excircle of the left end.

Furthermore, the inner gland is cylindrical, the outer diameter of the left end of the inner gland is smaller than the inner diameter of the sealing box, the middle of the inner gland is provided with an annular boss, and the outer diameter of the annular boss is smaller than the outer diameter of the sealing box.

Furthermore, the sealing box is cylindrical, the right end of the sealing box is provided with an external thread matched with the press cap, the left end of the sealing box is provided with an annular boss, the left end of the annular boss is provided with a reducing end socket, the left end of an inner hole of the sealing box is provided with a step, and the right end of the step is a hole cavity of the sealing filler.

Furthermore, the left end face of the annular boss is provided with an annular semicircular groove of the sealing ring I, and the left end face of the reducing end is provided with an annular semicircular groove of the sealing ring II.

Furthermore, the connecting clip is formed by two semicircular arc omega-shaped parts, two annular grooves are formed in the connecting clip, the plunger and the connecting rod are clamped, two sides of the connecting clip are respectively connected through two connecting bolts, and the connecting clip and the connecting rod are vertically inserted and connected through a connecting pin at the right end.

The working principle is as follows: the power is transmitted by utilizing a crank-connecting rod mechanism of the polymer injection pump, when the sealing box of the polymer injection pump leaks and the sealing packing needs to be adjusted, the pump is stopped, a motor belt is manually coiled to enable a connecting clip and a pressing cap to be separated from each other by a certain distance, a split auxiliary gland is inserted, the pump is continuously coiled, the connecting clip sequentially passes through the split auxiliary gland and an inner gland to uniformly transmit power to the sealing packing to compress the sealing packing, then an operator can fasten the pressing cap by hand, takes off the split auxiliary gland, starts the pump and observes the operation effect, and if the sealing box still leaks, the steps are repeated.

Compared with the prior art, the utility model has the following beneficial effects:

1. the device is suitable for adjusting the sealing box of the polymer injection pump, reduces the leakage of the sealing box and saves polymer injection resources;

2. the eccentric wear and the heating of the plunger are effectively prevented, the load of the polymer injection pump is reduced, the electric energy is saved, and the running rate and the polymer injection effect are improved;

3. the traditional modes of 'smashing', 'other' and the like of the fastening sealing filler are effectively avoided, and tools and equipment are prevented from being damaged;

4. the operation is safe, and the falling and slipping of the tool and the injury accidents are effectively prevented.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic view of the structure of the field application of the present invention

FIG. 2 is a left side view schematic diagram of the split auxiliary gland 1 of the present invention

The labels in the figure are: 1. a split auxiliary gland and 1-1 dovetail buckle; 2. the sealing structure comprises a pressing cap, 3. an inner pressing cover, 4. sealing filler, 5. a sealing box, 5-1. an annular boss and 5-2. a reducing end head; 6. the pump comprises a sealing ring I, a sealing ring II, a sealing ring 8, a connecting clip, a connecting pin 9, a connecting bolt 10, a connecting rod 11, a plunger 12, a fixing bolt 13, a pump body gland 14, a pump body 15 and a pump body; p. blind hole, Z. centre bore, H.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The practice of the utility model is further illustrated with reference to the accompanying drawings in which:

example one

As shown in fig. 1, an adjustable sealing box for an oilfield polymer injection pump jigger comprises: the pump body sealing structure comprises a split auxiliary gland 1, a pressing cap 2, an inner gland 3, sealing packing 4, a sealing box 5, a sealing ring I6, a sealing ring II 7, a connecting clamp 8, a connecting pin 9, a connecting bolt 10, a connecting rod 11, a plunger 12, a fixing bolt 13, a pump body gland 14 and a pump body 15; the method is characterized in that: the auxiliary split gland 1 is arranged on a plunger 12 and located between a pressure cap 2 and a connecting clip 8, a pump body gland 14 sleeves the left end of a sealing box 5, the left end penetrates through the pump body gland 14 through a connecting bolt 10 to be connected with a pump body 15, sealing filler 4 is arranged in the sealing box 5, the right end of the sealing box 5 is in threaded connection with the pressure cap 2, the pressure cap 2 compresses an inner gland 3 and the sealing filler 4, the plunger 12 penetrates through the centers of the sealing filler 4, the pressure cap 2 and the inner gland 3, and the left end of the plunger 12 is connected with a connecting rod (11) through the connecting clip 8.

Specifically, the split auxiliary gland 1 is cylindrical and has a two-half structure, one half of a contact surface of the split auxiliary gland is provided with a dovetail groove, the other half of the contact surface is provided with a dovetail, a dovetail buckle 1-1 is formed in an inserted mode, a central hole Z is slightly larger than the diameter of the plunger 12, and the outer diameter of the central hole Z is the same as that of the inner gland 3. The split auxiliary gland 1 is convenient to disassemble and assemble and firm in connection through the insertion of the dovetail groove and the dovetail buckle 1-1.

Specifically, pressure cap 2 is the cylinder, and the left part hole is equipped with the internal thread with sealed box 5 complex, and the right-hand member hole is equipped with annular boss, and the hole diameter is a bit more than the diameter of internal pressure lid 3, and left end excircle equipartition is equipped with four blind holes P. The press cap 2 is convenient to fasten and loosen by inserting the prying bar into the blind hole P.

Specifically, the inner gland 3 is cylindrical, the outer diameter of the left end of the inner gland is smaller than the inner diameter of the sealing box 5, the middle of the inner gland is provided with an annular boss, and the outer diameter of the annular boss is smaller than the outer diameter of the sealing box 5.

Specifically, the sealing box 5 is cylindrical, the right end of the sealing box is provided with an external thread matched with the pressing cap 2, the left end of the sealing box is provided with an annular boss 5-1, the left end of the annular boss 5-1 is provided with a reducing end 5-2, the left end of an inner hole of the sealing box 5 is provided with a first-stage step, and the right end of the step is a hole cavity of the sealing filler 4.

Specifically, the left end face of the annular boss 5-1 is provided with an annular semicircular groove of a sealing ring I6, and the left end face of the reducing end 5-2 is provided with an annular semicircular groove of a sealing ring II 7. The seal between the pump body gland 14 and the pump body 15 is sealed through a seal ring I6 and a seal ring II 7.

As shown in fig. 2, specifically, the connecting clip 8 is formed by two semicircular arc "Ω" shapes, two annular grooves H are formed in the connecting clip to clip the plunger 12 and the connecting rod 11, two sides of the connecting clip are respectively connected by two connecting bolts 10, and the connecting clip 8 is vertically inserted into the connecting rod 11 at the right end through a connecting pin 9.

Example two

When a polymer injection pump jigger in an oil field is used for adjusting a sealing packing 4 when a polymer injection pump sealing box 5 leaks, firstly, the pump is stopped, a motor belt is manually coiled, a connecting clamp 8 and a pressing cap 2 are separated from each other by a certain distance, and a split auxiliary pressing cap 1 is inserted; secondly, continuing to pump the disc, and enabling the connecting clamp 8 to uniformly transmit power to the sealing filler 4 through the split auxiliary gland 1 and the inner gland 3 in sequence to compress the sealing filler; thirdly, an operator can fasten the pressing cap 2 by hand and take down the split auxiliary pressing cover 1; fourthly, starting the pump, observing the operation effect, and repeating the steps if the sealing box 5 is still leaked.

Through the sealed letter of formula of gathering pump barring regulation formula is annotated in above-mentioned oil field, to sealed letter 5's regulation, reduce sealed letter 5 and leak, effectively prevent plunger 12 eccentric wear, generate heat, reach and reduce and annotate and gather pump load, effectively prevent to damage instrument and equipment, operation safety reaches and effectively prevents that the instrument from droing, skidding, takes place to hinder the people accident, and the energy saving improves the purpose of operation time rate and notes effect of gathering.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides an oil field is annotated and is gathered pump jigger regulation formula seal box, includes: the pump body structure comprises a split auxiliary gland (1), a gland (2), an inner gland (3), sealing packing (4), a sealing box (5), a sealing ring I (6), a sealing ring II (7), a connecting clamp (8), a connecting pin (9), a connecting bolt (10), a connecting rod (11), a plunger (12), a fixing bolt (13), a pump body gland (14) and a pump body (15); the method is characterized in that: the utility model discloses a pump body sealing device, including plunger (12), pump body gland (5), pressure cap (2), connecting clip (8), the left end of sealed letter (5) is lived in pump body gland (14), pass pump body gland (14) through connecting bolt (10) and be connected with pump body (15), be equipped with sealed filler (4) in sealed letter (5), the right-hand member of sealed letter (5) with press cap (2) threaded connection, press cap (2) with inner gland (3), sealed filler (4) compress tightly, plunger (12) are from sealed filler (4), press cap (2), inner gland (3) center is passed, the left end of plunger (12) is connected with connecting rod (11) through connecting clip (8).

2. The adjustable seal box of the oilfield polymer injection pump jigger of claim 1, wherein: the split auxiliary gland (1) is cylindrical and has a two-half structure, one half of a contact surface of the split auxiliary gland is provided with a dovetail groove, the other half of the contact surface is provided with a dovetail, a dovetail buckle (1-1) is formed in an inserted connection mode, a central hole (Z) is slightly larger than the diameter of the plunger (12), and the outer diameter of the central hole is the same as that of the inner gland (3).

3. The adjustable seal box of the oilfield polymer injection pump jigger of claim 1, wherein: the pressure cap (2) is a cylinder, the inner hole of the left part is provided with an inner thread matched with the sealing box (5), the inner hole of the right end is provided with an annular boss, the diameter of the inner hole is slightly larger than that of the inner gland (3), and four blind holes (P) are uniformly distributed on the excircle of the left end.

4. The adjustable seal box of the oilfield polymer injection pump jigger of claim 1, wherein: the inner gland (3) is cylindrical, the outer diameter of the left end is smaller than the inner diameter of the sealing box (5), the middle part of the inner gland is provided with an annular boss, and the outer diameter of the annular boss is smaller than the outer diameter of the sealing box (5).

5. The adjustable seal box of the oilfield polymer injection pump jigger of claim 1, wherein: the sealing box (5) is cylindrical, the right end of the sealing box is provided with an external thread matched with the pressing cap (2), the left end of the sealing box is provided with an annular boss (5-1), the left end of the annular boss (5-1) is provided with a reducing end (5-2), the left end of an inner hole of the sealing box (5) is provided with a first-level step, and the right end of the step is a hole cavity of the sealing filler (4).

6. The adjustable seal box of the oilfield polymer injection pump jigger of claim 5, wherein: the left end face of the annular boss (5-1) is provided with an annular semicircular groove of a sealing ring I (6), and the left end face of the reducing end head (5-2) is provided with an annular semicircular groove of a sealing ring II (7).

7. The adjustable seal box of the oilfield polymer injection pump jigger of claim 1, wherein: the connecting clamp (8) is formed by two semicircular arc omega-shaped bodies, two annular grooves (H) are formed in the connecting clamp, the plunger (12) is clamped with the connecting rod (11), two sides of the connecting clamp are connected through two connecting bolts (10), and the connecting clamp (8) is vertically inserted into the connecting rod (11) through a connecting pin (9) at the right end.