CN201031810Y

CN201031810Y - Voltage increase water injection pump high pressure seal device

Info

Publication number: CN201031810Y
Application number: CNU2007200181159U
Authority: CN
Inventors: 周屹林; 荆德霞; 刘月平
Original assignee: 刘月平
Priority date: 2007-01-26
Filing date: 2007-01-26
Publication date: 2008-03-05
Anticipated expiration: 2017-01-26

Abstract

The utility model relates to a pressurized sealing device of a booster pump and has the technological schemes that the booster consists of a thrust chamber and a sealing chamber which are connected by a connecting shell, a thrust shaft and a sealing shaft are connected by a transmission device, a coupling are connected with a motor and a joint is connected with a water injection pump. The thrust chamber consists of a thrust bearing, two end joints and shaft sleeves, two end sealing covers, two end mechanical sealings and a J-shaped sealing ring at the exit end of the shaft. The appearance of the shell of the thrust chamber is in the form of a radiating rib. The utility model has the advantages: firstly that the thrust bearing significantly improves the loading capacity of the axial force of the booster pump and enlarges the selection range of the booster pump; secondly that the shell is in the form of a radiating rib, causing the heat produced in the operation of the bearing and the mechanical seal to be conducted timely and prolonging the service life of sealing members such as a mechanical sealing and a rubber sealing; and thirdly that the sealing chamber uses a labyrinth non-contact sealing and a combined sealing consists of a plurality of packing sets causes less leakage and better protects the environment.

Description

The boosting water injection pump high pressure seal

One, technical field:

The utility model relates to a kind of water injection pump seal arrangement, particularly relates to a kind of boosting water injection pump high pressure seal.

Two, background technique:

At present, its thrust chamber of high pressure sealing body that use in the oil field in the known technology is all selected conventional bearing and single sealing for use, comprise as main structure in " a kind of main shaft structure of boosting water injection pump ": the thrust chamber has been selected four groups of angular contact ball bearings for use, closed chamber has been selected one group of packing_seal for use, the major defect of this structure at first is: the axial force carrying of high pressure sealing is lower, can not be widely used in the coupling of various pumps.The heat of bearing and mechanical seal can not in time conduct when running up, and causes bearing and mechanical seal short working life.Secondly, owing to be single sealing, sealing effect is bad, and amount of leakage is big, has polluted environment.

Three, summary of the invention:

The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, provides a kind of solution seal arrangement bearing capacity low, can not be extensively and pump mate, and sealing effect is bad, amount of leakage is big, has polluted the boosting water injection pump high pressure seal of environment.

Its technological scheme is: be made up of thrust chamber and closed chamber, the thrust chamber connects by being connected housing (8) with closed chamber, thrust shaft (6) is connect by transmission device with seal shaft (12), coupling (1) connects with motor, joint (22) connects with water injection pump, described thrust chamber is made of thrust bearing (5), two end connectors and axle sleeve (4), sealed at both ends lid (2,18), two ends mechanical seal (3), axle output terminal J RunddichtringO (19), and thrust chamber housing (7) appearance is designed to heat radiation type; Thrust bearing (5) is installed on the bearing support (20), mechanical seal (3) is equipped with at two ends, thrust chamber and shaft shoulder place, both sides, thrust chamber respectively are provided with two end connectors and axle sleeve (4), the outer end respectively is provided with a sealed at both ends lid (2,18), thrust chamber and sealing cover (18) outer end J RunddichtringO (19) is housed, and described closed chamber is made of array non-contact type labyrinth seal (13), two-stage array sealed packing (14).

Wherein, thrust bearing (5) is installed in bearing support (20) upward also can bear bi-directional axial power, and be equipped with respectively at two ends, thrust chamber: two end connectors and axle sleeve (4), two ends mechanical seal (3), sealed at both ends lid (2,18) and axle output terminal J RunddichtringO (19).

In addition, described closed chamber has six groups of non-contact type labyrinth seals (13), the primary seal that closed chamber inner housing (10), external casing (11), elementary joint (9,21) are formed, the terminal sealing that is made of two-stage array packing (14) and main crimp head (15) and secondary crimp head (16); Non-contact type labyrinth seal (13) and spacer ring (24) are installed between closed chamber inner housing (10), the elementary joint (9,21), and elementary joint (9), main crimp head (15) respectively are provided with one group of packing (14).

The beneficial effects of the utility model are: the one, and thrust bearing has significantly improved the ability to bear of boosting water injection pump axial force, has enlarged the apolegamy scope of suction booster; The 2nd, thrust chamber case design is become heat radiation type, the heat that make bearing, produces when turning round with mechanical seal in time conducts, and makes Sealings such as mechanical seal, rubber seal improve working life; The 3rd, closed chamber has designed the mazy type non-contact seal, constitute combination seal with two-stage array packing and make amount of leakage littler, better protection environment.

Four, description of drawings:

Accompanying drawing 1 is an embodiment's of the present utility model structural representation;

Accompanying drawing 2 is structural representations of the present utility model.

In the accompanying drawing 1: motor 31, water injection pump coupling 32, support 33, water intake 34, high pressure seal 35, suction booster 36, base 37, water outlet 38;

Accompanying drawing 2: coupling 1, right-hand member sealing cover 2, mechanical seal 3, two end connectors and axle sleeve 4, thrust bearing 5, thrust shaft 6, thrust chamber housing 7, connection housing 8, elementary joint 9, closed chamber inner housing 10, closed chamber frame 11, seal shaft 12, non-contact type labyrinth seal 13, packing 14, main crimp head 15, secondary crimp head 16, spline housing 17, left end sealing cover 18, J RunddichtringO 19, bearing support 20, elementary joint 21, pump joint 22, high pressure water inlet 23, spacer ring 24.

Five, embodiment:

In conjunction with the accompanying

drawings

1,2, the utility model will be further described:

Form by thrust chamber and closed chamber, form by thrust chamber and closed chamber, the thrust chamber connects by being connected housing 8 with closed chamber, thrust shaft 6 is connect by transmission device spline housing 17 with seal shaft 12, coupling 1 connects with motor, joint 22 connects with water injection pump, and described thrust chamber is made of thrust bearing 5, two end connectors and axle sleeve 4, sealed at both

ends lid

2,18, two ends mechanical seal 3, axle output terminal J RunddichtringO 19, and thrust chamber housing 7 appearances are designed to heat radiation type; Thrust bearing 5 is installed on the bearing support 20, mechanical seal 3 is equipped with at two ends, thrust chamber and shaft shoulder place, both sides, thrust chamber respectively are provided with two end connectors and axle sleeve 4, the outer end respectively is provided with a sealed at both

ends lid

2,18, J RunddichtringO 19 is equipped with in thrust chamber and left end sealing cover 18 outer ends, wherein, thrust bearing is divided into right quiet 5.1, a left side quiet 5.2 and motion block 5, right quiet is fixed in bearing support 20 by straight pin, quiet an of left side is fixed in by sunk screw and is adjusted on the piece motion block 5 of thrust bearing, by two semi-rings, shaft block ring is fixed on the thrust shaft 6, thrust chamber right-hand member is by right-hand member joint and axle sleeve 4, right mechanical seal 3, right-hand member sealing cover 2, thrust shaft 6, constitute the right-hand member seal assembly; Thrust chamber left end by left end joint and axle sleeve 4, left mechanical seal 3, left end sealing cover 18, thrust shaft 6, J RunddichtringO 19, constitute the left end seal assembly; Thrust chamber housing 7 is a heat radiation type, keeps the good transmission of heat in thrust chamber.

Described closed chamber constitutes closed chamber by

elementary joint

9,21, closed chamber inner housing 10, closed chamber frame 11, seal shaft 12, six groups of non-contact type labyrinth seals 13, two-stage array packing 14, main crimp head 15, secondary crimp head 16, pump joints 22; Closed chamber has six groups of non-contact type labyrinth seals 13, the primary seal that closed chamber inner housing 10, external casing 11,

elementary joint

9,21 formed, the terminal sealing that is made of two-stage array packing 14 and main crimp head 15 and secondary crimp head 16.Non-contact type labyrinth seal 13 and spacer ring 24 are installed between closed chamber inner housing 10, the

elementary joint

9,21, and elementary joint 9, main crimp head 15 respectively are provided with one group of packing 14.

Thrust shaft 6 is connected by spline housing 17 with seal shaft 12, and coupling 1 is connected with motor, and thrust chamber housing 7 is a heat radiation type, and the thrust outdoor is equipped with service tank, and the thrust chamber is connected with oil pipe with service tank.

During the pressurized water injection pump work, oil field high pressure water webmaster line is connected with high pressure water inlet 23, enter suction booster by closed chamber inner housing 10, closed chamber frame 11 ring-like spaces, pump joint 22, its remaining water is by elementary joint 9, seal shaft 12, non-contact type labyrinth seal 13, throttling step by step, make the water yield, hydraulic pressure reduce and reduce, residual amount is regulated and control in standard leakage scope by two-stage array packing 14, seal shaft 12, main crimp head 15, secondary crimp head 16 afterwards.

With reference to accompanying drawing 2, by motor 31, water injection pump coupling 32, support 33, water intake 34, high pressure seal 35, suction booster 36, base 37, water outlet 38, constitute the boosting water injection pump complete machine, be existing equipment, repeat no more.

Claims

1. boosting water injection pump high pressure seal, form by thrust chamber and closed chamber, the thrust chamber connects by being connected housing (8) with closed chamber, thrust shaft (6) is connect by transmission device with seal shaft (12), coupling (1) connects with motor, joint (22) connects with water injection pump, it is characterized in that: described thrust chamber is made of thrust bearing (5), two end connectors and axle sleeve (4), sealed at both ends lid (2,18), two ends mechanical seal (3), axle output terminal J RunddichtringO (19), and thrust chamber housing (7) appearance is designed to heat radiation type; Thrust bearing (5) is installed on the bearing support (20), mechanical seal (3) is equipped with at two ends, thrust chamber and shaft shoulder place, both sides, thrust chamber respectively are provided with two end connectors and axle sleeve (4), the outer end respectively is provided with a sealed at both ends lid (2,18), thrust chamber and sealing cover (18) outer end J RunddichtringO (19) is housed, and described closed chamber is made of array non-contact type labyrinth seal (13), two-stage array sealed packing (14).

2. boosting water injection pump high pressure seal according to claim 1, it is characterized in that: thrust bearing (5) is installed in bearing support (20) upward also can bear bi-directional axial power, and be equipped with respectively at two ends, thrust chamber: two end connectors and axle sleeve (4), two ends mechanical seal (3), sealed at both ends lid (2,18) and axle output terminal J RunddichtringO (19).

3. boosting water injection pump high pressure sealing dress arm according to claim 1, it is characterized in that: described closed chamber has six groups of non-contact type labyrinth seals (13), the primary seal that closed chamber inner housing (10), external casing (11), elementary joint (9,21) are formed, the terminal sealing that is made of two-stage array packing (14) and main crimp head (15) and secondary crimp head (16); Non-contact type labyrinth seal (13) and spacer ring (24) are installed between closed chamber inner housing (10), the elementary joint (9,21), and elementary joint (9), main crimp head (15) respectively are provided with one group of packing (14).