CN219412964U - Fan suitable for nuclear power field - Google Patents
Fan suitable for nuclear power field Download PDFInfo
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- CN219412964U CN219412964U CN202320928716.2U CN202320928716U CN219412964U CN 219412964 U CN219412964 U CN 219412964U CN 202320928716 U CN202320928716 U CN 202320928716U CN 219412964 U CN219412964 U CN 219412964U
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- sealing cover
- rotating shaft
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- bearing box
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Abstract
The utility model provides a fan suitable for the nuclear power field, which comprises: the bearing box is internally provided with a rotating shaft, and two ends of the rotating shaft extend out of the bearing box; the sealing cover is arranged at one end of the bearing box, one end of the rotating shaft penetrates through the sealing cover, the rotating shaft penetrates through one end of the sealing cover to be sealed at the shaft end with the sealing cover, and an impeller is arranged at one end of the rotating shaft penetrating through the sealing cover; the shaft coupling sealing cover is arranged at the other end of the bearing box, and the other end of the rotating shaft stretches into the shaft coupling sealing cover; the driving motor is arranged on one side of the coupler sealing cover; the magnetic coupling comprises two magnetic half couplings, one of the magnetic half couplings is arranged at one end of the rotating shaft extending into the coupling sealing cover, the other magnetic half coupling is arranged on the output shaft of the driving motor, and the driving motor transmits power to the rotating shaft through the magnetic coupling.
Description
Technical Field
The utility model relates to the field of fans, in particular to a fan suitable for the nuclear power field.
Background
The fan is a machine which is used for improving the pressure of gas and discharging the gas by means of input mechanical energy, and has different sealing requirements on the fan under different environments. When the fan is used in the nuclear power field, the conveyed medium is heavy water containing corrosive gas, and the requirement on the working environment is extremely high on the leakage quantity of the conveyed medium of the fan. The gas concentration of the general gas fan in the required operation environment is 20-50PPM, and the medium concentration of the required operation environment in the nuclear power field is 0.1PPM, so that the general gas fan cannot meet the requirement of nuclear power transportation when applied to the nuclear power field, namely, the general fan cannot meet the sealing requirement of the nuclear power field, and is limited by the prior art, and the general equipment cannot realize the detection of such low concentration, so that a fan applicable to the nuclear power field is lacking in the market so as to meet the requirement of the fan operation environment.
Disclosure of Invention
The utility model provides a fan suitable for the nuclear power field, and aims to solve the problem that no special fan exists in the current nuclear power field.
In order to achieve the above object, an embodiment of the present utility model provides a fan suitable for use in the nuclear power field, including:
the bearing box is internally provided with a rotating shaft, and two ends of the rotating shaft extend out of the bearing box;
the sealing cover is arranged at one end of the bearing box, one end of the rotating shaft penetrates through the sealing cover, the rotating shaft penetrates through one end of the sealing cover to be sealed at the shaft end with the sealing cover, and an impeller is arranged at one end of the rotating shaft penetrating through the sealing cover;
the shaft coupling sealing cover is arranged at the other end of the bearing box, and the other end of the rotating shaft stretches into the shaft coupling sealing cover;
the driving motor is arranged on one side of the coupler sealing cover;
the magnetic coupling comprises two magnetic half couplings, one of the magnetic half couplings is arranged at one end of the rotating shaft extending into the coupling sealing cover, the other magnetic half coupling is arranged on the output shaft of the driving motor, and the driving motor transmits power to the rotating shaft through the magnetic coupling.
Preferably, a protective cover is arranged between the coupler sealing cover and the driving motor, one end of the protective cover is fixedly connected with the shell of the driving motor, and the other end of the protective cover is fixedly connected with the bearing box.
Preferably, the sealing cover comprises a front baffle and a cylinder, a first sealing element is arranged between the front baffle and the cylinder, a second sealing element is arranged between the cylinder and the bearing box, and the shaft end seal is arranged between the rotating shaft and the front baffle.
Preferably, a third seal is provided between the coupling seal housing and the bearing housing.
Preferably, the first sealing member, the second sealing member and the third sealing member are all O-shaped sealing rings.
Preferably, two bearings are arranged in the bearing box at intervals, outer rings of the two bearings are fixed on the inner wall of the bearing box, and inner rings of the two bearings are rotatably connected with the rotating shaft.
Preferably, a fan housing is arranged outside the impeller, an air outlet and an air inlet are formed in the fan housing, and the fan housing is fixedly connected with the sealing cover.
The scheme of the utility model has the following beneficial effects:
in the application, a sealed cavity is formed by adopting the bearing box, the sealing cover and the coupling sealing cover, so that the damage of the driving motor caused by the leakage of heavy water containing corrosive gas is isolated, the heavy water is limited in the formed cavity in a dynamic sealing and static sealing combined mode, the leakage of the heavy water is avoided, and the sealing performance of the fan is greatly improved; meanwhile, the magnetic coupling is adopted as a power transmission structure, so that the leakage probability is further reduced.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic illustration of the present utility model;
fig. 2 is an enlarged schematic view of the portion a in fig. 1.
[ reference numerals description ]
1-bearing box, 2-axis of rotation, 3-sealed cowling, 4-impeller, 5-shaft coupling sealed cowling, 6-driving motor, 7-magnetic force half coupling, 8-safety cover, 9-bearing, 10-fan housing.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, an embodiment of the present utility model provides a fan suitable for the nuclear power field, which includes a bearing housing 1, a rotating shaft 2 is disposed in the bearing housing 1, the rotating shaft 2 can rotate in the bearing housing 1, and two ends of the rotating shaft 2 respectively extend out of the bearing housing 1. A seal cover 3 is provided at one end of the bearing housing 1, one end of the rotating shaft 2 corresponding to the rotating shaft extends out of the side seal cover 3, and an impeller 4 is provided at one end of the rotating shaft 2 extending out of the seal cover 3, the impeller 4 being used for converting mechanical energy into pressure of a medium. The shaft end of the sealing cover 3 is sealed with the rotating shaft 2. A coupling seal cover 5 is provided at the other end of the bearing housing 1, and the other end of the rotating shaft 2 extends into the coupling seal cover 5. The sealing cover 3, the bearing box 1 and the coupler sealing cover 5 form a sealed cavity, when heavy water and other mediums are conveyed, the heavy water is stopped at the coupler sealing cover 5, so that the medium is prevented from leaking, the sealing performance of the product is improved, and the coupler sealing cover is suitable for a low-concentration running environment.
Further, for the power supply that provides axis of rotation 2, this application still includes driving motor 6 and magnetic force shaft coupling, wherein driving motor 6 sets up in one side of shaft coupling sealed cowling 5, magnetic force shaft coupling includes two magnetic force half-couplings 7, one of them magnetic force half-coupling 7 sets up the output at driving motor 6, another magnetic force half-coupling 7 sets up in the one side that axis of rotation 2 is close to shaft coupling sealed cowling 5, simultaneously shaft coupling sealed cowling 5 covers magnetic force half-coupling 7 and establishes in the cavity of formation, both sides magnetic force half-coupling 7 is through the interact of magnetic force with driving motor 6 output power transmission to axis of rotation 2, realize axis of rotation 2's rotation. The adoption of the magnetic coupling can avoid punching holes on the coupling sealing cover 5, and further avoid leakage of the cavity.
Further, a protection cover 8 is arranged between the coupler sealing cover 5 and the driving motor 6, one end of the protection cover 8 is fixedly connected with the shell of the driving motor 6, and the other end of the protection cover 8 is fixedly connected with the bearing box 1.
Preferably, the sealing cover 3 comprises a front baffle and a cylinder, wherein a first sealing element is arranged between the front baffle and the cylinder, a second sealing element is arranged between the cylinder and the bearing housing 1, and the shaft end sealing is arranged between the rotating shaft 2 and the front baffle.
A third seal is arranged between the coupling seal housing 5 and the bearing housing 1. Preferably, the first, second and third seals are O-ring seals.
In this application, but through setting up three quiet sealed O type sealing washer and make sealed cowling 3, bearing box 1 and shaft coupling sealed cowling 5 the cavity leakproofness that forms improve, greatly reduced the probability that the medium revealed.
The bearing box 1 is internally provided with two bearings 9, the outer rings of the two bearings 9 are fixed on the inner wall of the bearing box 1, the inner rings of the two bearings 9 are connected with the rotating shaft 2, and the two bearings 9 play roles in supporting and reducing the rotating friction of the rotating shaft 2. The impeller 4 is externally provided with a fan housing 10, an air outlet and an air inlet are arranged on the fan housing 10, and the fan housing 10 is fixedly arranged on the sealing cover 3.
In this application, with the impeller 4 of original fan, axis of rotation 2 and power motor between through increasing sealed cowling 3, bearing box 1 and shaft coupling sealed cowling 5, blocked the medium in the transportation, take place the condition of leaking along impeller 4 and axis of rotation 2 for the medium ends in shaft coupling sealed cowling 5 departments, has avoided the medium to reveal, influences operational environment. Meanwhile, three O-shaped sealing rings are utilized to form static seal, so that the sealing performance of the cavity is enhanced, and compared with the dynamic seal adopted by the existing fan, the sealing effect is better.
It is further noted that fans referred to in this application include, but are not limited to, centrifugal fans.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (7)
1. A fan suitable for nuclear power field, its characterized in that includes:
the bearing box (1) is internally provided with a rotating shaft (2), and two ends of the rotating shaft (2) extend out of the bearing box (1);
the sealing cover (3) is arranged at one end of the bearing box (1), one end of the rotating shaft (2) penetrates through the sealing cover (3), one end of the rotating shaft (2) penetrating through the sealing cover (3) is sealed at the shaft end with the sealing cover (3), and an impeller (4) is arranged at one end of the rotating shaft (2) penetrating through the sealing cover (3);
the shaft coupling sealing cover (5) is arranged at the other end of the bearing box (1), and the other end of the rotating shaft (2) stretches into the shaft coupling sealing cover (5);
the driving motor (6) is arranged at one side of the coupler sealing cover (5);
the magnetic coupling comprises two magnetic coupling parts (7), wherein one magnetic coupling part (7) is arranged at one end of the rotating shaft (2) extending into the coupling sealing cover (5), the other magnetic coupling part (7) is arranged on an output shaft of the driving motor (6), and the driving motor (6) transmits power to the rotating shaft (2) through the magnetic coupling.
2. The fan suitable for the nuclear power field according to claim 1, wherein: the novel high-speed motor is characterized in that a protective cover (8) is arranged between the coupler sealing cover (5) and the driving motor (6), one end of the protective cover (8) is fixedly connected with the shell of the driving motor (6), and the other end of the protective cover is fixedly connected with the bearing box (1).
3. The fan suitable for the nuclear power field according to claim 2, wherein: the sealing cover (3) comprises a front baffle and a cylinder, a first sealing piece is arranged between the front baffle and the cylinder, a second sealing piece is arranged between the cylinder and the bearing box (1), and the shaft end is arranged between the rotating shaft (2) and the front baffle in a sealing mode.
4. A fan suitable for use in the nuclear power field according to claim 3, wherein: a third sealing element is arranged between the coupler sealing cover (5) and the bearing box (1).
5. The fan suitable for the nuclear power field according to claim 4, wherein: the first sealing piece, the second sealing piece and the third sealing piece are O-shaped sealing rings.
6. The fan suitable for the nuclear power field according to claim 1, wherein: two bearings (9) are arranged in the bearing box (1) at intervals, outer rings of the two bearings (9) are fixed on the inner wall of the bearing box (1), and inner rings of the two bearings (9) are rotatably connected with the rotating shaft (2).
7. The fan suitable for the nuclear power field according to claim 1, wherein: the impeller is characterized in that a fan cover (10) is arranged outside the impeller (4), an air outlet and an air inlet are formed in the fan cover (10), and the fan cover (10) is fixedly connected with the sealing cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320928716.2U CN219412964U (en) | 2023-04-23 | 2023-04-23 | Fan suitable for nuclear power field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320928716.2U CN219412964U (en) | 2023-04-23 | 2023-04-23 | Fan suitable for nuclear power field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219412964U true CN219412964U (en) | 2023-07-25 |
Family
ID=87205704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320928716.2U Active CN219412964U (en) | 2023-04-23 | 2023-04-23 | Fan suitable for nuclear power field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219412964U (en) |
-
2023
- 2023-04-23 CN CN202320928716.2U patent/CN219412964U/en active Active
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