CN215860947U

CN215860947U - Combined sealing device for booster pump

Info

Publication number: CN215860947U
Application number: CN202120918233.5U
Authority: CN
Inventors: 不公告发明人
Original assignee: Dandong Shengxin Petrochemical Equipment Manufacturing Co ltd
Current assignee: Dandong Shengxin Petrochemical Equipment Manufacturing Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-02-18
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a combined sealing device for a booster pump, which comprises a shaft sleeve, wherein a moving ring assembly, a static ring assembly and a gland assembly are sequentially sleeved on the shaft sleeve from left to right, a packing is arranged between the gland assembly and the shaft sleeve, the moving ring assembly comprises a moving ring base, a corrugated pipe and a moving ring, a plurality of threaded holes are formed in one side of the moving ring base, fastening screws I are connected with the threaded holes in an internal thread manner, the moving ring base is connected with the shaft sleeve through the fastening screws I, the moving ring base is connected with the moving ring through the corrugated pipe, a first sealing groove is formed in one side of the fastening screws I at the lower part of the moving ring base, a second sealing rubber strip is arranged in the first sealing groove, and the second sealing rubber strip is in friction connection with the shaft sleeve. The utility model keeps the sealing state with the shaft sleeve by adjusting the pretightening force of the outer gland on the packing, and can control the radial run-out of the corresponding pump shaft.

Description

Combined sealing device for booster pump

Technical Field

The utility model relates to the technical field of sealing devices, in particular to a combined sealing device for a booster pump.

Background

The sealing form of the high-pressure water injection and well washing pump for the oil field in the domestic market at present is packing sealing. In the pump, the packing not only needs to realize the sealing function on a high-pressure medium in the pump, but also needs to limit the radial runout of a pump shaft. Therefore, the packing is required to be pressed frequently, and the service life of the packing is short.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a combined sealing device for a booster pump, which can seal a high-pressure medium and control radial runout of a pump shaft at the same time so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: combined type sealing device for booster pump, including the axle sleeve, from left to right the cover is equipped with rotating ring subassembly, quiet ring subassembly and gland subassembly in proper order on the axle sleeve, be provided with the packing between gland subassembly and the axle sleeve.

Preferably, the rotating ring assembly comprises a rotating ring base, a corrugated pipe and a rotating ring, a plurality of threaded holes are formed in one side of the rotating ring base, a first fastening screw is connected to the threaded holes in an internal thread mode, the rotating ring base is connected with the shaft sleeve through the first fastening screw, and the rotating ring base is connected with the rotating ring through the corrugated pipe.

Preferably, one side of the first fastening screw at the lower part of the movable ring base is provided with a first sealing groove, a second sealing rubber strip is arranged in the first sealing groove, and the second sealing rubber strip is in friction connection with the shaft sleeve.

Preferably, the stationary ring assembly comprises a stationary ring and a stationary ring base, the stationary ring base is connected with the stationary ring, a plurality of second threaded holes are formed in the stationary ring base, and fastening screws are connected with the second threaded holes in an internal thread mode.

Preferably, the gland subassembly includes interior gland and outer gland, interior gland is connected with one side surface of outer gland, seal groove two has been seted up to the bottom of interior gland, be provided with joint strip one in the seal groove two, joint strip is one set and is established the outside at quiet ring base, the bottom and the two threaded connection of fastening screw of interior gland.

Preferably, the inner pressing cover is provided with a plurality of fixing grooves which are uniformly distributed along the circumferential direction of the outer pressing cover.

Preferably, the packing sleeve is arranged outside the shaft sleeve, and the packing is in contact with the lower surface of the inner gland.

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

1. the high-pressure medium sealing device is provided with a static ring assembly and a dynamic ring assembly, wherein the static ring is arranged at the bottom of an inner pressure cover through a fastening screw II on a static ring base;

2. the utility model is also provided with the packing, the sealing state with the shaft sleeve is kept by adjusting the pretightening force of the outer gland on the packing, and the radial run-out of the corresponding pump shaft can be controlled.

Drawings

FIG. 1 is a sectional view showing the overall structure of a combined seal device for a booster pump according to the present invention;

FIG. 2 is a schematic side view of the combined sealing device for a booster pump according to the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 1 at A according to the present invention.

In the figure: 100. a shaft sleeve; 101. a rotating ring assembly; 102. a stationary ring assembly; 103. a gland assembly; 104. packing; 105. a threaded hole; 106. fastening a first screw; 107. a first sealing groove; 108. a second sealing rubber strip; 109. a second threaded hole; 110. a second fastening screw; 111. a second sealing groove; 112. a first sealing rubber strip; 113. fixing grooves; 1011. a movable ring base; 1012. a bellows; 1013. a moving ring; 1021. a stationary ring; 1022. a stationary ring base; 1031. an inner gland; 1032. and (4) an outer gland.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: the combined sealing device for the booster pump comprises a shaft sleeve 100, wherein a moving ring assembly 101, a stationary ring assembly 102 and a gland assembly 103 are sequentially sleeved on the shaft sleeve 100 from left to right, and a packing 104 is arranged between the gland assembly 103 and the shaft sleeve 100.

The rotating ring assembly 101 comprises a rotating ring base 1011, a corrugated pipe 1012 and a rotating ring 1013, wherein one side of the rotating ring base 1011 is provided with a plurality of threaded holes 105, the threaded holes 105 are internally connected with a fastening screw 106, the rotating ring base 1011 is connected with the shaft sleeve 100 through the fastening screw 106, and the rotating ring base 1011 and the rotating ring 1013 are connected through the corrugated pipe 1012.

One side of a first fastening screw 106 at the lower part of the movable ring base 1011 is provided with a first sealing groove 107, a second sealing rubber strip 108 is arranged in the first sealing groove 107, and the second sealing rubber strip 108 is in friction connection with the shaft sleeve 100.

The static ring assembly 102 comprises a static ring 1021 and a static ring base 1022, the static ring base 1022 is connected with the static ring 1021, a plurality of second threaded holes 109 are formed in the static ring base 1022, and the second threaded holes 109 are connected with second fastening screws 110 in a threaded manner.

The gland component 103 comprises an inner gland 1031 and an outer gland 1032, the inner gland 1031 is connected with one side surface of the outer gland 1032, a second sealing groove 111 is formed in the bottom of the inner gland 1031, a first sealing rubber strip 112 is arranged in the second sealing groove 111, the first sealing rubber strip 112 is sleeved on the outer side of the stationary ring base 1022, and the bottom of the inner gland 1031 is in threaded connection with a second fastening screw 110.

A plurality of fixing grooves 113 are formed in the inner pressing cover 1031, and the fixing grooves 113 are evenly distributed along the circumferential direction of the outer pressing cover 1032.

Packing 104 is sleeved on the outer side of the shaft sleeve 100, and the packing 104 is in contact with the lower surface of the inner gland 1031.

The working principle is as follows: the corrugated pipe 1012 is fixed on the shaft sleeve 100 through a first fastening screw 106 on the movable ring base 1011, a second sealing rubber strip 108 is arranged between the movable ring base 1011 and the shaft sleeve 100, a stationary ring 1021 is installed at the bottom of the inner gland 1031 through a second fastening screw 110 on the stationary ring base 1022, a first sealing rubber strip is arranged between the stationary ring base 1022 and the inner gland 1031, the movable ring 1013 is in close contact with the stationary ring 1021, so that sealing of high-pressure media is realized, the pretightening force of the external pressure cover 1032 on the packing 104 is adjusted, the sealing state of the shaft sleeve 100 is kept, and meanwhile, the radial runout of a corresponding pump shaft can be controlled.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Combination formula sealing device for booster pump includes axle sleeve (100), its characterized in that: the bearing is characterized in that a moving ring assembly (101), a stationary ring assembly (102) and a gland assembly (103) are sequentially sleeved on the shaft sleeve (100) from left to right, and packing (104) is arranged between the gland assembly (103) and the shaft sleeve (100).

2. The combined seal device for a booster pump according to claim 1, wherein: the rotating ring assembly (101) comprises a rotating ring base (1011), a corrugated pipe (1012) and a rotating ring (1013), wherein a plurality of threaded holes (105) are formed in one side of the rotating ring base (1011), a fastening screw I (106) is connected to the threaded holes (105) in an internal thread manner, the rotating ring base (1011) is connected with the shaft sleeve (100) through the fastening screw I (106), and the rotating ring base (1011) is connected with the rotating ring (1013) through the corrugated pipe (1012).

3. The combined seal device for a booster pump according to claim 2, wherein: one side of a first fastening screw (106) on the lower portion of the movable ring base (1011) is provided with a first sealing groove (107), a second sealing rubber strip (108) is arranged in the first sealing groove (107), and the second sealing rubber strip (108) is in friction connection with the shaft sleeve (100).

4. The combined seal device for a booster pump according to claim 1, wherein: the static ring assembly (102) comprises a static ring (1021) and a static ring base (1022), the static ring base (1022) is connected with the static ring (1021), a plurality of second threaded holes (109) are formed in the static ring base (1022), and second fastening screws (110) are connected with the second threaded holes (109) in an internal thread mode.

5. The combined seal device for a booster pump according to claim 4, wherein: gland subassembly (103) include interior gland (1031) and outer gland (1032), interior gland (1031) are connected with one side surface of outer gland (1032), seal groove two (111) have been seted up to the bottom of interior gland (1031), be provided with joint strip (112) in seal groove two (111), the outside at quiet ring base (1022) is established in joint strip (112) cover, the bottom and the fastening screw two (110) threaded connection of interior gland (1031).

6. The combined seal device for a booster pump according to claim 5, wherein: a plurality of fixing grooves (113) are formed in the inner pressing cover (1031), and the fixing grooves (113) are evenly distributed along the circumferential direction of the outer pressing cover (1032).

7. The combined seal device for a booster pump according to claim 5, wherein: packing (104) cover is established in axle sleeve (100) outside, packing (104) and interior gland (1031) lower surface contact.