CN209856095U - Mechanical seal centrifugal pumping ring for high-temperature pump - Google Patents
Mechanical seal centrifugal pumping ring for high-temperature pump Download PDFInfo
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- CN209856095U CN209856095U CN201920548720.XU CN201920548720U CN209856095U CN 209856095 U CN209856095 U CN 209856095U CN 201920548720 U CN201920548720 U CN 201920548720U CN 209856095 U CN209856095 U CN 209856095U
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- lateral wall
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- side wall
- ring
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Abstract
The utility model discloses a centrifugal pump sending of mechanical seal ring for high temperature pump, including the main part, the main part comprises diapire, first lateral wall and second lateral wall, and the intermediate position of diapire makes progress vertical extension and has first lateral wall, and the border position of diapire upwards vertical extension has the second lateral wall, and diapire and first lateral wall and second lateral wall form the ring channel, have evenly seted up a plurality of round holes on the ring channel, have all seted up the throttle groove on first lateral wall and the second lateral wall. The centrifugal pumping ring is adopted to circulate the sealing liquid, so that the heat generated by a sealing friction pair can be taken away, the flow of the sealing liquid is increased by the inclined round holes, the flow resistance of the sealing liquid is reduced, the sealing liquid can be circulated more quickly, and more heat in a sealing cavity can be taken away. The throttling groove can improve the flow rate of the sealing liquid, so that the heat generated by sealing is taken away at the highest rate to the maximum extent, the working efficiency is high, and the field use circulation effect is good.
Description
Technical Field
The utility model relates to a mechanical seal of high temperature pump specifically indicates a centrifugal pump sending ring of mechanical seal for high temperature pump.
Background
In the flushing scheme PLAN23 system, the pumping ring plays a role in driving the sealing liquid, and specifically refers to a circulation process in which the sealing liquid is driven by the pumping ring, then flows out of the sealing cavity, is cooled by the heat exchanger, and then returns to the sealing cavity. However, the straight-tooth type pumping ring in the prior art has the disadvantages of less heat, low working efficiency and short service life of the sealing device.
SUMMERY OF THE UTILITY MODEL
In order to improve the work efficiency of pumping ring, extension sealing device's life, the application provides a mechanical seal centrifugal pumping ring for high temperature pump.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a mechanical seal centrifugal pump ring for high temperature pump which characterized in that: including the main part, the main part comprises diapire, first lateral wall and second lateral wall, and the intermediate position of diapire upwards extends perpendicularly has first lateral wall, and the border position of diapire upwards extends perpendicularly has the second lateral wall, and the diapire forms the ring channel with first lateral wall and second lateral wall, has evenly seted up a plurality of round holes on the ring channel, has all seted up the throttle groove on first lateral wall and the second lateral wall.
Compared with the prior art, the utility model has the advantages of it is following:
the centrifugal pumping ring is adopted to circulate the sealing liquid, so that the heat generated by a sealing friction pair can be taken away, the flow of the sealing liquid is increased by the inclined round holes, the flow resistance of the sealing liquid is reduced, the sealing liquid can be circulated more quickly, and more heat in a sealing cavity can be taken away. The throttling groove can improve the flow rate of the sealing liquid, so that the heat generated by sealing is taken away at the highest rate to the maximum extent, the working efficiency is high, the field use circulation effect is good, and when the throttling groove is applied to a flushing scheme PLAN23, the temperature of the sealing liquid passing through the heat exchanger can be 80-90 ℃ lower than that in a sealing cavity. Particularly, the sealing device has stronger adaptability under the conditions of short sealing cavity, high sealing liquid temperature and urgent need of temperature reduction.
More preferably: the round hole is a round hole which is inclined along the circumference of the bottom wall.
By adopting the technical scheme, the flow of the sealing liquid passing through the round hole is increased, and the flow resistance of the sealing liquid passing through the round hole is reduced.
More preferably: the radius of the circle where the round hole and the bottom wall are located forms an included angle of 20-30 degrees, and the inclination direction of the round hole is consistent with the steering direction of the main body.
By adopting the technical scheme, the flow of the sealing liquid passing through the round hole is increased, and the flow resistance of the sealing liquid passing through the round hole is reduced.
More preferably: the throttling groove is a concave groove.
By adopting the technical scheme, the heat generated in the sealed cavity can be taken away at the highest rate to the maximum extent.
More preferably: be provided with the pump cover on the circumference of main part, the pump cover can be dismantled with the main part and be connected, has seted up the oil outlet on the pump cover.
By adopting the technical scheme, the main body is more efficiently brought out of the sealing liquid through the oil outlet, the cooled sealing liquid can be circulated into the sealing cavity, and the heat in the sealing cavity can be continuously absorbed.
More preferably: the oil outlet is an inclined hole, the oil outlet is consistent with the inclined direction of the round hole, and the oil outlet is coaxially opposite to the round hole.
By adopting the technical scheme, under the pumping effect, the sealing liquid absorbing heat is taken out from the sealing cavity in a large quantity, and the working efficiency of the main body is improved.
Drawings
FIG. 1 is a schematic diagram of the position of a pumping ring of an embodiment, illustrating the positional relationship of the pumping ring, a seal cavity and a pump cover;
FIG. 2 is a schematic top cross-sectional view of an embodiment pumping ring, illustrating the specific structure of the pumping ring;
FIG. 3 is a schematic diagram of the front side of an embodiment pumping ring illustrating the location and orientation of the opening of the circular hole;
FIG. 4 is a schematic perspective view of a pumping ring according to an embodiment, illustrating a specific structure of the pumping ring;
in the figure, 1-main body; 2-an annular groove; 3-round hole; 4-a throttling groove; 5, pump cover; 6-oil outlet; 7-sealing the cavity; 8-oil inlet hole; 9-shaft sleeve; 10-a bottom wall; 11-a first side wall; 12-second side wall.
Detailed Description
The present invention will be described in further detail with reference to fig. 1, 2, 3 and 4.
Example 1
As shown in fig. 1, a mechanical seal centrifugal pumping ring for a high-temperature pump is composed of a main body 1, an annular groove 2, a circular hole 3 and a throttling groove 4.
As shown in fig. 2, fig. 3 and fig. 4, the main body 1 is composed of a first side wall 11 and a second side wall 12 of a bottom wall 10, the first side wall 11 is vertically extended upwards at the middle position of the bottom wall 10, the second side wall 12 is vertically extended upwards at the edge position of the bottom wall 10, the bottom wall 10 and the first side wall 11 and the second side wall 12 form an annular groove 2, a plurality of circular holes 3 are uniformly formed in the annular groove 2, the circular holes 3 are circular holes inclined along the circumference of the bottom wall 10, an included angle of 20-30 degrees is formed between the radius of the circle where the circular holes 3 and the bottom wall 10 are located according to the centrifugal force principle, the direction of the circular holes 3 is consistent with the turning direction of the main body 1, and a certain tangential pressure effect is exerted on the sealing liquid, the flow of the sealing liquid passing through the circular holes 3 is.
Referring to fig. 2 and 4, the first side wall 11 and the second side wall 12 are both provided with throttling grooves 4, the throttling grooves 4 are concave grooves, the number of the throttling grooves 4 can be determined according to actual needs, and is generally 2-3 throttling grooves, so that heat generated in the sealed cavity 7 can be taken away at the highest rate to the maximum extent.
Be provided with pump cover 5 on main part 1's circumference, pump cover 5 can be dismantled with main part 1 and be connected, has seted up oil outlet 6 on the pump cover 5, and oil outlet 6 makes main part 1 take out sealed liquid more effectively, is favorable to by the sealed liquid circulation after the cooling get into seal chamber 7 in to continue to absorb the heat in seal chamber 7. The oil outlet 6 is an inclined hole, the inclined direction of the oil outlet 6 is consistent with that of the round hole 3, and the oil outlet 6 is coaxially opposite to the round hole 3.
Referring to fig. 1 and 4, the other end of the main body 1 is connected to a seal cavity 7, the seal cavity 7 is located on a shaft sleeve 9, an oil inlet 8 is formed in the upper portion of the seal cavity 7, and the oil inlet 8 is communicated with the inside of the seal cavity 7. The sealing liquid enters the inside of the sealing cavity 7 from the oil inlet hole 8, absorbs heat generated inside the sealing cavity 7, flows out of the circular hole 3, enters the annular groove 2 and the throttling groove 4 of the main body 1, and finally flows out of the oil outlet hole 6. The throttling groove 4 increases the flow speed of the sealing liquid and takes away more heat.
The working principle is as follows: referring to fig. 1, a body 1 is mounted on a sleeve 9 and rotates together with the sleeve 9 to generate a centrifugal force, generating a pumping effect. The sealing liquid enters the whole space of the sealing cavity 7 through the oil inlet hole 8, heat generated by high-speed rotation in the sealing cavity 7 is absorbed, and the heat absorbed sealing liquid enters the round hole 3. Under the pumping effect, the main body 1 takes out the sealing liquid which absorbs heat from the round hole 3, the sealing liquid enters the annular groove 2 and the throttling groove 4 in sequence, the throttling groove 4 accelerates the flow rate of the sealing liquid, so that the sealing liquid enters the oil outlet 6 more quickly, and more heat generated by the sealing cavity 7 is taken away. The working efficiency of the main body is improved. And the sealing liquid enters the heat exchanger for cooling after coming out of the oil outlet 6, and the cooled sealing liquid enters the sealing cavity 7 from the oil inlet 8 again to continue to circulate for the next time. Through implementation and comparative analysis, the invention achieves good use effect.
Example 2:
the main body 1 is mainly used in case of flushing protocol PLAN23, short sealed cavity, high medium temperature and urgent need of temperature reduction. On the PLAN of PLAN23 washing, through practical detection, under the pumping effect of the straight-tooth type pumping ring, the temperature of the sealing liquid which flows out of the heat exchanger is only reduced by 40-55 ℃ compared with the temperature in the sealing cavity, and under the pumping effect of the main body 1, the temperature of the sealing liquid which flows out of the heat exchanger is reduced by 80-90 ℃ compared with the temperature in the sealing cavity 7. Specifically, see tables 1 and 2, where table 1 is a temperature value of the sealing liquid after passing through the heat exchanger under the pumping action of the straight-tooth pumping ring, and table 2 is a temperature value of the sealing liquid after passing through the heat exchanger under the pumping action of the main body 1. Through the contrast, the utility model discloses under main part 1's the pumping effect, sealed liquid has taken away more heats that produce in seal chamber 7, has consequently improved work efficiency, has prolonged sealing device's life.
TABLE 1
| Sealing liquid | Pumping pressure | Temperature in the sealed cavity | Temperature after heat exchange | Temperature difference |
| Heat conducting oil | 0.065MPa | 320℃ | 280℃ | 40℃ |
| Ethylbenzene production | 0.068MPa | 235℃ | 193℃ | 42℃ |
| Heating medium | 0.07MPa | 285℃ | 230℃ | 55℃ |
| Aviation kerosene | 0.075MPa | 216℃ | 170℃ | 46℃ |
TABLE 2
| Sealing liquid | Pumping pressure | Temperature in the sealed cavity | Temperature after heat exchange | Temperature difference |
| Heat conducting oil | 0.065MPa | 320℃ | 240℃ | 80℃ |
| Ethylbenzene production | 0.068MPa | 234.9℃ | 153℃ | 81.9℃ |
| Heating medium | 0.07MPa | 285℃ | 179℃ | 106℃ |
| Aviation kerosene | 0.075MPa | 216℃ | 128℃ | 88℃ |
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the present invention.
Claims (6)
1. The utility model provides a mechanical seal centrifugal pump ring for high temperature pump which characterized in that: the novel metal wire rope comprises a main body (1), wherein the main body (1) consists of a bottom wall (10), a first side wall (11) and a second side wall (12), the first side wall (11) vertically extends upwards from the middle position of the bottom wall (10), the second side wall (12) vertically extends upwards from the edge position of the bottom wall (10), the first side wall (11) and the second side wall (12) form an annular groove (2), and a plurality of round holes (3) are uniformly formed in the annular groove (2); the first side wall (11) and the second side wall (12) are both provided with throttling grooves (4).
2. A mechanically sealed centrifugal pumping ring for a high temperature pump according to claim 1, wherein: the round hole (3) is a round hole which is inclined along the circumference of the bottom wall (10).
3. A mechanically sealed centrifugal pumping ring for a high temperature pump according to claim 1, wherein: the round hole (3) and the radius of the circle where the bottom wall (10) is located form an included angle of 20-30 degrees, and the inclined direction of the round hole (3) is consistent with the turning direction of the main body (1).
4. A mechanically sealed centrifugal pumping ring for a high temperature pump according to claim 1, wherein: the throttling groove (4) is a concave groove.
5. A mechanically sealed centrifugal pumping ring for a high temperature pump according to claim 1, wherein: be provided with pump cover (5) on the circumference of main part (1), pump cover (5) with main part (1) can be dismantled and be connected, oil outlet (6) have been seted up on pump cover (5).
6. The mechanically sealed centrifugal pumping ring for a high temperature pump of claim 5, wherein: the oil outlet hole (6) is an inclined hole, the oil outlet hole (6) is consistent with the inclined direction of the round hole (3), and the oil outlet hole (6) is coaxial and opposite to the round hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920548720.XU CN209856095U (en) | 2019-04-24 | 2019-04-24 | Mechanical seal centrifugal pumping ring for high-temperature pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920548720.XU CN209856095U (en) | 2019-04-24 | 2019-04-24 | Mechanical seal centrifugal pumping ring for high-temperature pump |
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| Publication Number | Publication Date |
|---|---|
| CN209856095U true CN209856095U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920548720.XU Active CN209856095U (en) | 2019-04-24 | 2019-04-24 | Mechanical seal centrifugal pumping ring for high-temperature pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973420A (en) * | 2019-04-24 | 2019-07-05 | 西安永华集团有限公司 | A kind of centrifugal pumping ring of high temperature mechanical seal for pump |
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2019
- 2019-04-24 CN CN201920548720.XU patent/CN209856095U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973420A (en) * | 2019-04-24 | 2019-07-05 | 西安永华集团有限公司 | A kind of centrifugal pumping ring of high temperature mechanical seal for pump |
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