CN218542688U

CN218542688U - Circulating pump seal seat

Info

Publication number: CN218542688U
Application number: CN202222729203.7U
Authority: CN
Inventors: 贾光辉; 朱连超
Original assignee: Shanxi Anlun Chemical Co ltd
Current assignee: Shanxi Anlun Chemical Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-02-28
Anticipated expiration: 2032-10-17

Abstract

The utility model relates to the field of mechanical seal, in particular to a circulating pump seal seat, which comprises a movable ring, a stationary ring, a shaft sleeve, a spring and a main shaft; the flange is provided with a water inlet channel and a water outlet channel, the middle part of the outer side of the shaft sleeve is sleeved with the flange, a push ring is sleeved on the shaft sleeve of the static ring attached to the flange, the push ring and the static ring are connected with each other, the push ring and the flange are in circumferential limiting fit, a spring seat is sleeved on the shaft sleeve inside the flange, a spring is located in a compensation ring cavity between the push ring inside the flange and the spring seat, and the water inlet channel and the water outlet channel are communicated with the compensation ring cavity. The effect body circulating pump medium is isolated by the granular inorganic salt water through the sealing rings, so that the protection is achieved, the spring part of the medium entering the compensation ring cavity can be effectively isolated, external circulating water is utilized to flow out of the water outlet channel after entering the compensation ring cavity through the water inlet channel, and the purpose of online switching and cleaning is achieved.

Description

Circulating pump seal seat

Technical Field

The utility model relates to a mechanical seal field specifically is a circulating pump seal receptacle.

Background

Chemical production has the characteristics of continuity, and sewage treatment plant effect body circulating pump belongs to key equipment at the operation in-process, and especially if sewage treatment plant effect body circulating pump is leaked in the operation in-process, this equipment operation mainly circulates in several effect body evaporimeters containing granular inorganic salt water, and the frequency of utilization is high, and the sealed form of using now is: a multi-spring mechanical seal. Leakage frequently occurs in the production process due to the reasons of spring inaction, broken dynamic and static rings and the like, and frequent leakage not only increases the workload of maintainers, but also restricts the stability of a production system.

The total number of mechanical seal leakage problems of an effective body circulating pump of a certain sewage treatment plant is 38 from 2021 year 5 month to 10 month, the operation of the device is mainly to circulate granular inorganic salt water in a plurality of effective body evaporators, and the use frequency is high. The sealing form of the multi-spring mechanical seal can frequently cause the problems of no action of the spring, fragmentation of a moving ring and a static ring and the like in the production process, the problems can cause frequent leakage, frequent leakage not only causes the increase of the workload of maintenance personnel, but also restricts the stability and the durability of a production system.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the sealed form of multi-spring mechanical seal and can lead to revealing the problem of frequently sending, provide a circulating pump seal receptacle.

The utility model discloses a realize through following technical scheme: a circulating pump seal seat comprises a movable ring, a stationary ring, a shaft sleeve, a spring and a main shaft;

the improved water-saving pump is characterized in that a shaft sleeve is sleeved on the main shaft, a shaft sleeve sealing ring is arranged between the shaft sleeve and the main shaft, the movable ring and the static ring are sleeved at one end of the outer side of the shaft sleeve, one end of the movable ring is connected with one end of the shaft sleeve, the movable ring sealing ring is arranged between one end of the movable ring and one end of the shaft sleeve, the static ring is closely adjacent to the movable ring, the static ring is covered with a flange, the static ring sealing ring is arranged between the static ring and the flange, a water inlet channel and a water outlet channel are formed in the flange, the flange is sleeved at the middle of the outer side of the shaft sleeve, a push ring is sleeved on the shaft sleeve of the static ring in a fitting manner and connected with the static ring, the push ring is in circumferential limiting fit with the inner part of the flange, a spring seat is sleeved on the shaft sleeve inside the flange, the spring seat is connected with the flange, the spring sleeve is arranged in a compensation ring cavity between the push ring and the spring seat inside the flange, an end sealing ring is arranged between the spring seat and the flange, a spring seat is arranged between the spring seat and the shaft sleeve, and a spring seat sealing ring is arranged between the spring seat, and the water inlet channel and the water outlet channel are communicated with the compensation ring cavity.

As the utility model discloses technical scheme's further improvement, the spring holder one end of keeping away from the spring has the annular gap, the spring holder sealing washer sets up in the annular gap, and the spring holder tip of annular gap department be provided with the spacing complex clamp plate of spring holder sealing washer, the clamp plate cover is located on the axle sleeve, and is connected between clamp plate and the spring holder.

As the utility model discloses technical scheme's further improvement, axle sleeve other end fixing cover is equipped with solid fixed ring, gu be provided with on the fixed ring with the spacing complex locating piece of clamp plate.

As a technical scheme of the utility model further improve, the spring holder sealing washer is V type circle, one of them limit portion of V type circle and the spring holder inner wall of annular breach department end the cooperation of position, the free end of another limit portion of V type circle closely laminates with the outer circumference of axle sleeve.

As the utility model discloses technical scheme's further improvement, it is provided with first round pin body to be connected between rotating ring and the axle sleeve.

As the further improvement of the technical proposal of the utility model, a second pin body is connected and arranged between the push ring and the static ring.

As the utility model discloses technical scheme's further improvement is provided with on the flange one end terminal surface that is close to quiet ring with pump body seal complex flange seal circle.

As a further improvement of the technical scheme of the utility model, the flange is provided with a connecting hole.

As the utility model discloses technical scheme's further improvement, wear to have put first bolt jointly on clamp plate and the spring holder, first bolt is connected with the flange.

Circulating pump seal receptacle compares with prior art, has following beneficial effect: the utility model discloses change many spring mechanical seal's sealed form into a spring, the spring cup joints on the axle sleeve, and the grow is directly regarded as to the spring silk, is difficult for blockking up. The effect body circulating pump medium containing granular inorganic salt water is isolated through the sealing rings to achieve protection, the spring part of the compensation ring cavity, into which the medium enters, can be effectively isolated, external circulating water flows out of the water outlet channel after entering the compensation ring cavity through the water inlet channel, the purpose of online switching and cleaning is achieved, heat generated by friction between the movable ring and the static ring can be cooled, the stability of a production system is guaranteed, the fault frequency of equipment is reduced, the movable ring can be stretched normally, the production process is more stable, the workload of inspection and maintenance operation is reduced, and the utilization rate of the equipment is greatly improved; the device need not to increase new place, new basis, and the construction is simple, but continuous use, and need not to consume more energy. Just the utility model discloses can realize that online clearance is changed, satisfying the production site and using, clearance, washing are simple, have guaranteed production and equipment safety. The utility model discloses can satisfy on-the-spot normal use, guarantee that the machine seals life improves to 8-12 months from original 1-2 months.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is the structure schematic diagram of the sealing seat of the circulating pump of the present invention.

In the figure: 1-shaft sleeve, 2-shaft sleeve sealing ring, 3-moving ring sealing ring, 4-moving ring, 5-stationary ring, 6-flange sealing ring, 7-stationary ring sealing ring, 8-flange, 9-push ring, 10-spring, 11-end sealing ring, 12-spring seat, 13-spring seat sealing ring, 14-pressing plate, 15-stationary ring, 16-positioning block, 17-first pin body, 18-water inlet channel, 19-water outlet channel, 20-second pin body, 21-connecting hole, 22-first bolt, 23-top thread, 24-second bolt and 25-main shaft.

Detailed Description

The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, the present invention provides a specific embodiment of a sealing seat for a circulation pump, which comprises a rotating ring 4, a stationary ring 5, a shaft sleeve 1, a spring 10 and a main shaft 25;

the shaft sleeve 1 is sleeved on the main shaft 25, a shaft sleeve sealing ring 2 is arranged between the shaft sleeve 1 and the main shaft 17, the movable ring 4 and the static ring 5 are both sleeved at one end of the outer side of the shaft sleeve 1, one end of the movable ring 4 is connected with one end of the shaft sleeve 1, a movable ring sealing ring 3 is arranged between one end of the movable ring 4 and the shaft sleeve 1, the static ring 5 is arranged close to the movable ring 4, a flange 8 is covered on the static ring 5, a static ring sealing ring 7 is arranged between the static ring 5 and the flange 8, a water inlet channel 18 and a water outlet channel 19 are arranged on the flange 8, the flange 8 is sleeved at the middle part of the outer side of the shaft sleeve 1, and a push ring 9 is sleeved on the shaft sleeve 1 attached to the static ring 5, the thrust ring 9 is connected with the stationary ring 5, the thrust ring 9 is in circumferential limit fit with the inside of the flange 8, a spring seat 12 is sleeved on the shaft sleeve 1 inside the flange 8, the spring seat 12 is connected with the flange 8, the spring 10 is sleeved on the shaft sleeve 1, the spring 10 is located in a compensation ring cavity between the thrust ring 9 and the spring seat 12 inside the flange 8, an end sealing ring 11 is arranged between the spring seat 12 and the flange 8, a spring seat sealing ring 13 is arranged between the spring seat 12 and the shaft sleeve 1, and the water inlet channel 18 and the water outlet channel 19 are communicated with the compensation ring cavity.

In this embodiment, the push ring 9 is in spacing cooperation with the inside circumference of flange 8, and is specific the flange 8 inner wall is provided with the direction slot hole along the axial, push ring 9 can be through direction slot hole along flange 8 inner wall axial motion. Under the action of the elastic force of the spring 10, the push ring 9 pushes the static ring 5 to be tightly matched with the dynamic ring 4. The stationary ring 5 is connected with the push ring 9, and the push ring 9 is in circumferential limit fit with the inner part of the flange 8, so that the stationary ring 5 is installed on the flange 8. The rotating ring 4 is connected with the shaft sleeve 1, so that the rotating ring 4 rotates along with the main shaft 25 and the shaft sleeve 1.

When the flange 8 is dismounted, the spring seat 12 is dismounted, the spring 10 is separated from the pressing of the spring seat 12, the static ring 5 connected with the push ring 9 is separated from the dynamic ring 4, and the dismounting of the flange 8 is completed. The installation between flange 8 and the axle sleeve 1 need not to damage quiet ring 5 and rotating ring 4 and can be accomplished fast and dismantle to quiet ring 5 and rotating ring 4's installation homology in this embodiment, has improved change efficiency.

This embodiment the seal receptacle is installed in the main shaft seal position of imitating the body circulating pump, this embodiment the parameter is as follows under the mechanical seal operational environment of seal receptacle:

medium: evaporation of crystallized brine, temperature: 120-150 ℃, pH:7-8, chloride ion: 25000-30000mg/L, density: 1.03g/cm at 105 DEG C ³ And the rotating speed r:1475rpm. Specifically, in this embodiment, a seal surface is formed between the moving ring 4 and the shaft sleeve 1 through the moving ring seal ring 3, a seal surface is formed between the stationary ring 5 and the flange 8 through the stationary ring seal ring 7, a seal surface is formed between the spring seat 12 and the flange 8 through the end seal ring 11, and a seal surface is formed between the spring seat 12 and the shaft sleeve 1 through the spring seat seal ring 13And a sealing surface is formed, and the compensation ring cavity forms an independent sealing cavity body to prevent the material from invading into the compensation ring cavity for crystallization. In this embodiment, it is sealed not to have between quiet ring 5 and the axle sleeve 1, contain the inside crystallization of quiet ring 5 that the chloride ion medium can invade, in order to avoid the crystallization to lead to spring 10 not moving, cause and reveal, utilize outside circulating water to flow out from outlet channel 19 behind getting into the compensation ring intracavity in this embodiment through inlet channel 18, realize the purpose of online switch clearance, can cool off the heat that friction generated between rotating ring 4, the quiet ring 5 simultaneously, production system's stability has been guaranteed, the fault frequency who has reduced equipment has also been reached simultaneously, practice thrift and overhaul the cost of labor, reduce equipment spare part loss.

The utility model further provides a concrete mounting means of spring holder sealing washer 13: an annular notch is formed in one end, far away from the spring 10, of the spring seat 12, the spring seat sealing ring 13 is arranged in the annular notch, a pressing plate 14 in limiting fit with the spring seat sealing ring 13 is arranged at the end portion of the spring seat 12 at the annular notch, the pressing plate 14 is sleeved on the shaft sleeve 1, and the pressing plate 14 is connected with the spring seat 12. In order to facilitate timely disassembly and replacement of the spring seat sealing ring 13, the pressing plate 14 can be separated from the spring seat 12 during specific disassembly, so that the spring seat sealing ring 13 in the annular notch is exposed, and the spring seat sealing ring 13 is replaced.

The embodiment further provides a connection mode of the shaft sleeve 1 and the main shaft 25, specifically: the fixed cover of axle sleeve 1 other end tip is equipped with solid fixed ring 15, gu be provided with on the fixed ring 15 with 14 spacing complex locating pieces 16 of clamp plate. In this embodiment, a jack screw 23 is inserted into the fixing ring 15, and an end of the jack screw 23 passes through the shaft sleeve 1 and then is in low-contact fit with the main shaft 25. When the main shaft 25 rotates, the shaft sleeve 1 and the main shaft 25 rotate synchronously through the jackscrew 23 inside the fixing ring 15.

This embodiment has still provided a concrete structure of spring seat sealing washer 13, specifically is: the spring seat sealing ring 13 is a V-shaped ring, one side part of the V-shaped ring is in end position fit with the inner wall of the spring seat 12 at the annular notch, and the free end of the other side part of the V-shaped ring is tightly attached to the outer circumference of the shaft sleeve 1. This enables an effective seal between the spring seat 12 and the sleeve 1.

In order to facilitate the synchronous rotation of the rotating ring 4 along with the shaft sleeve 1, the embodiment further provides a connection mode between one end of the rotating ring 4 and one end of the shaft sleeve 1: a first pin body 17 is connected between the movable ring 4 and the shaft sleeve 1. Specifically, the first pin body 17 is disposed on the shaft sleeve 1, and the movable ring 4 has an insertion hole in insertion fit with the first pin body 17.

This embodiment provides the connected mode between push ring 9 and quiet ring 5, specifically is: a second pin body 20 is connected between the push ring 9 and the stationary ring 5. Specifically, the second pin body 20 is inserted into the push ring 9, and the stationary ring 5 has an insertion hole in insertion fit with the second pin body 20.

In order to improve the sealing performance between the flange 8 and the pump body, a flange sealing ring 6 which is in sealing fit with the pump body is arranged on the end face of one end of the flange 8 close to the static ring 5.

To facilitate the attachment of the flange 8 to the pump body, said flange 8 is provided with attachment holes 21. The connection hole 21 in this embodiment is an independent area from the inlet passage 18 and the outlet passage 19.

In order to facilitate the installation and the removal of the pressure plate 14, a first bolt 22 is commonly penetrated on the pressure plate 14 and the spring seat 12, and the first bolt 22 is connected with the flange 8.

In this embodiment, each sealing ring may be an O-ring, unless otherwise specified.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims

1. A circulating pump sealing seat comprises a movable ring (4), a stationary ring (5), a shaft sleeve (1), a spring (10) and a main shaft (25), and is characterized in that,

the utility model discloses a spring bearing, including main shaft (25), axle sleeve (1), rotating ring (4) and quiet ring (5), axle sleeve (1) outside one end is located to axle sleeve (1) cover, and is provided with axle sleeve sealing washer (2) between axle sleeve (1) and main shaft (25), rotating ring (4) and quiet ring (5) all overlap and locate axle sleeve (1) outside one end, are connected between rotating ring (4) one end and axle sleeve (1) one end tip, and are provided with rotating ring sealing washer (3) between rotating ring (4) one end and axle sleeve (1), quiet ring (5) next-door neighbour rotating ring (4) set up, quiet ring (5) upper coverage is equipped with flange (8), be provided with quiet ring sealing washer (7) between quiet ring (5) and flange (8), inlet channel (18) and outlet channel (19) have on flange (8), axle sleeve (1) outside middle part is located to flange (8) cover on axle sleeve (1) of quiet ring (5) of laminating, be equipped with push ring (9) on the axle sleeve (1), push ring (9) and quiet ring (5) are connected between static ring (5), and push ring (9) and the inside spring bearing (10) and push ring (10) and push away the cover and be located between spring bearing (10) and push away the inside spring seat (10) and push away the spring seat (10) and be connected between the spring seat (10) cover and push away the inside spring seat (8) and push away the axle sleeve (8) and push away the spring seat (10) and be connected In the compensating ring cavity between the spring seats (12), an end sealing ring (11) is arranged between the spring seat (12) and the flange (8), a spring seat sealing ring (13) is arranged between the spring seat (12) and the shaft sleeve (1), and the water inlet channel (18) and the water outlet channel (19) are communicated with the compensating ring cavity.

2. The circulating pump seal seat according to claim 1, wherein one end of the spring seat (12) away from the spring (10) is provided with an annular notch, the spring seat seal ring (13) is disposed in the annular notch, and a pressure plate (14) which is in spacing fit with the spring seat seal ring (13) is disposed at the end of the spring seat (12) at the annular notch, the pressure plate (14) is sleeved on the shaft sleeve (1), and the pressure plate (14) is connected with the spring seat (12).

3. The circulating pump seal holder of claim 2, wherein a fixing ring (15) is fixedly sleeved at the other end of the shaft sleeve (1), and a positioning block (16) in limit fit with the pressure plate (14) is arranged on the fixing ring (15).

4. The circulating pump seal holder according to claim 2, wherein the spring seat seal ring (13) is a V-shaped ring, one edge of the V-shaped ring is in stop fit with the inner wall of the spring seat (12) at the annular gap, and the free end of the other edge of the V-shaped ring is tightly attached to the outer circumference of the shaft sleeve (1).

5. Circulating pump sealing seat according to claim 1, characterized in that a first pin (17) is connected between the rotating ring (4) and the shaft sleeve (1).

6. Circulating pump seal seat according to claim 1, characterized in that a second pin (20) is connected between the push ring (9) and the stationary ring (5).

7. A circulating pump sealing seat according to claim 1, characterized in that a flange sealing ring (6) which is in sealing fit with the pump body is arranged on the end face of one end of the flange (8) close to the static ring (5).

8. Circulation pump seal holder according to claim 1, characterized in that the flange (8) has attachment holes (21).

9. The circulating pump seal holder of claim 2, wherein the pressure plate (14) and the spring seat (12) are provided with a first bolt (22) which is penetrated together, and the first bolt (22) is connected with the flange (8).