High-sealing type anti-corrosion high-pressure fan

Abstract

The utility model discloses a high sealing type anti-corrosion high-pressure fan which comprises a motor, a pump shell, a pump cover and a fan impeller, a pump shell sealing ring is arranged in a pump shell sealing ring groove of the pump shell, the pump shell sealing ring is in sealing contact with the pump cover, an air inlet and an air outlet are formed in the back of the pump shell, an air inlet sealing ring at the air inlet is in sealing contact with an air inlet connector, and an air outlet sealing ring at the air outlet is in sealing contact with an air outlet connector. And an air outlet sealing ring at the air outlet is in sealing contact with the air outlet joint. The fan pump body is simple in structure and reasonable in design, the pump shell and the pump cover are sealed through the pump shell sealing ring, the air inlet of the pump shell and the air inlet connector are sealed through the air inlet sealing ring, and the air outlet of the pump shell and the air outlet connector are sealed through the air outlet sealing ring, so that the sealing performance of the fan pump body can be greatly improved; the high-pressure fan can be applied to occasions such as chemical production and poisonous gas conveying, and leakage is avoided. In addition, a shaft end oil seal and anti-corrosion design is adopted.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure fans, and more specifically to a highly sealed anti-corrosion high-pressure fan. Background Art

[0002] The working principle of the high-pressure fan is mainly to use the fan impeller to do work on the incoming gas, increase the kinetic energy of the gas, and then increase the pressure of the gas through centrifugal action and expansion process to achieve a certain air volume and pressure, thereby achieving the technical effect of large-flow high-pressure air supply.

[0003] At present, the high-pressure blower on the market generally has a motor, a pump housing, a pump cover and a blower impeller. The motor is installed on the back of the pump housing, the rotating shaft of the motor passes through the central hole of the pump housing, the pump cover is installed on the front of the pump housing, the inside of the pump cover and the inside of the pump housing form a pump cavity, and the blower impeller is located in the pump cavity. However, the existing high-pressure blowers have the following disadvantages: the sealing of the pump body is poor, and it is easy to leak in some chemical production, toxic gas transportation and other occasions. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned defects in the prior art and provide a highly sealed anti-corrosion high-pressure blower which can prevent leakage and greatly improve the sealing performance of the blower pump body.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a highly sealed anti-corrosion high-pressure fan, including a motor, a pump casing, a pump cover and a fan impeller, wherein the motor is installed on the back of the pump casing, the rotating shaft of the motor passes through the central hole of the pump casing, the pump cover is installed on the front side of the pump casing, the interior of the pump cover and the interior of the pump casing form a pump cavity, the fan impeller is located in the pump cavity and is connected to the rotating shaft of the motor, a circle of pump casing sealing ring groove is provided on the front edge of the pump casing, a pump casing sealing ring is provided in the pump casing sealing ring groove, and the pump casing sealing ring is provided in the pump casing sealing ring groove. The sealing ring is in sealing contact with the back edge of the pump cover, and an air inlet and an air outlet are opened on the back of the pump housing. An air inlet joint is installed at the air inlet, and an air outlet joint is installed at the air outlet. A circle of air inlet sealing ring groove is provided at the mouth edge of the air inlet, and an air inlet sealing ring is provided in the air inlet sealing ring groove. The air inlet sealing ring is in sealing contact with the air inlet joint, a circle of air outlet sealing ring groove is provided at the mouth edge of the air outlet, and an air outlet sealing ring is provided in the air outlet sealing ring groove, and the air outlet sealing ring is in sealing contact with the air outlet joint.

[0006] Preferably, a front end cover is provided in the middle of the front side of the pump cover, a front bearing is provided inside the front end cover, the head end of the rotating shaft of the motor is installed in the center hole of the front bearing, and an end cover sealing ring is provided between the front end cover and the pump cover.

[0007] Preferably, the front bearing is configured as a high-temperature bearing with a temperature resistance of 180°C.

[0008] Preferably, a front isolating ring is provided at the inner center hole of the pump cover, the rotating shaft of the motor passes through the center hole of the front isolating ring, and a front double-layer carbon oil seal is provided at the center hole of the front isolating ring.

[0009] Preferably, a rear isolating ring is provided at the inner center hole of the pump housing, the rotating shaft of the motor passes through the center hole of the rear isolating ring, and a rear double-layer carbon oil seal is provided at the center hole of the rear isolating ring.

[0010] Preferably, the inner surfaces of the pump casing and the pump cover are respectively provided with Teflon coatings.

[0011] Preferably, an isolation flange is provided between the motor and the pump housing, the rotating shaft of the motor passes through the center hole of the isolation flange, and a flange double-layer carbon oil seal is provided at the center hole of the isolation flange.

[0012] Preferably, a fan guard is provided at the tail of the motor, a heat dissipation fan impeller is provided inside the fan guard, and the heat dissipation fan impeller is connected to the tail end of the rotating shaft of the motor.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model has a simple structure and a reasonable design. The pump casing and the pump cover are sealed by a pump casing sealing ring, the air inlet of the pump casing and the air inlet joint are sealed by an air inlet sealing ring, and the air outlet of the pump casing and the air outlet joint are sealed by an air outlet sealing ring. This can greatly improve the sealing performance of the fan pump body, so that the high-pressure fan can be used in some chemical production, toxic gas transportation and other occasions to avoid leakage.

[0015] 2. The pump cover of the utility model is provided with a front end cover, and a front bearing is provided inside the front end cover. The bearing is arranged outside the pump cavity, which is conducive to heat dissipation. The front end cover and the pump cover are sealed by an end cover sealing ring to ensure the sealing of the fan pump body.

[0016] 3. The utility model adds a shaft end seal (ie, a double-layer carbon oil seal), which can further improve the sealing performance of the high-pressure blower.

[0017] 4. An isolation flange is added between the pump housing and the motor of the utility model to prevent the heat generated by the motor from being transferred to the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a highly sealed anti-corrosion high-pressure blower provided by an embodiment of the utility model;

[0020] Figure 2 It is a cross-sectional view of a highly sealed anti-corrosion high-pressure blower provided by an embodiment of the utility model;

[0021] Figure 3 It is a partial enlargement of the high-sealed anti-corrosion high-pressure blower provided by the embodiment of the utility model. Figure 1 ;

[0022] Figure 4 It is a partial enlargement of the high-sealed anti-corrosion high-pressure blower provided by the embodiment of the utility model. Figure 2 . DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Please refer to Figure 1 , Figure 2 and Figure 3 An embodiment of the utility model provides a highly sealed and corrosion-resistant high-pressure fan, including a motor 1, a pump casing 2, a pump cover 3 and a fan impeller 4. The pump cover 3 is installed on the front side of the pump casing 2, and the interior of the pump cover 3 and the interior of the pump casing 2 form a pump chamber.

[0025] Better, such as Figure 2 and Figure 4 As shown, the front edge of the pump housing 2 may be provided with a pump housing sealing ring groove, in which a pump housing sealing ring 5 is provided, and the pump housing sealing ring 5 is in sealing contact with the back edge of the pump cover 3 .

[0026] In a specific implementation, the inner surfaces of the pump housing 2 and the pump cover 3 may be provided with Teflon coatings respectively, which can improve the anti-corrosion performance.

[0027] like Figure 2 As shown, the motor 1 is installed on the back of the pump housing 2, one end of the rotating shaft 11 of the motor 1 can pass through the central hole of the pump housing 2, and the fan impeller 4 is located in the pump cavity and connected to the rotating shaft 11 of the motor 1.

[0028] like Figure 1 and Figure 2 As shown, an air inlet 6 and an air outlet 7 are provided on the back of the pump housing 2, an air inlet connector 8 is installed at the air inlet 6, and an air outlet connector 9 is installed at the air outlet 7. A circle of air inlet sealing ring groove is provided at the mouth edge of the air inlet 6, an air inlet sealing ring 10 is provided in the air inlet sealing ring groove, and the air inlet sealing ring 10 is in sealing contact with the air inlet connector 8. A circle of air outlet sealing ring groove is provided at the mouth edge of the air outlet 7, an air outlet sealing ring 12 is provided in the air outlet sealing ring groove, and the air outlet sealing ring is in sealing contact with the air outlet connector 9.

[0029] like Figure 2 and Figure 3 As shown, a front cover 13 is provided in the middle of the front of the pump cover 3, a front bearing 14 is provided inside the front cover 13, the head end of the rotating shaft 11 of the motor 1 is installed in the center hole of the front bearing 14, and an end cover sealing ring 15 is provided between the front cover 13 and the pump cover 3. Preferably, the front bearing 14 can be set as a high-temperature bearing with a temperature resistance of 180°C. Among them, setting the bearing outside the pump cavity is conducive to heat dissipation, and the front cover and the pump cover are sealed by the end cover sealing ring, which can ensure the sealing of the fan pump body.

[0030] like Figure 2 and Figure 3 As shown, a front isolating ring 16 is provided at the inner center hole of the pump cover 3, and the rotating shaft 11 of the motor 1 can pass through the center hole of the front isolating ring 16, and a front double-layer carbon oil seal 17 can be provided at the center hole of the front isolating ring 16. In addition, a rear isolating ring 18 is provided at the inner center hole of the pump housing 2, and the rotating shaft 11 of the motor 1 can pass through the center hole of the rear isolating ring 18, and a rear double-layer carbon oil seal 19 can be provided at the center hole of the rear isolating ring 18.

[0031] like Figure 2 As shown, an isolation flange 20 is provided between the motor 1 and the pump housing 2. The isolation flange 20 can prevent the heat generated by the motor from being transferred to the pump body. The rotating shaft 11 of the motor 1 can pass through the center hole of the isolation flange 20. A flange double-layer carbon oil seal 21 is also provided at the center hole of the isolation flange 20.

[0032] This embodiment adds shaft end seals (i.e., double-layer carbon oil seals) at the center holes of the pump housing 2, pump cover 3, and isolation flange 20, which can further improve the sealing performance of the high-pressure blower. The double-layer carbon oil seal has a long service life and better sealing performance.

[0033] like Figure 2As shown, the tail of the motor 1 may also be provided with a fan guard 22, and a cooling fan impeller 23 is provided in the fan guard 22, and the cooling fan impeller 23 is connected to the tail end of the rotating shaft 11 of the motor 1. The rotating shaft 11 of the motor 1 can drive the cooling fan impeller 23 to rotate to blow air and dissipate heat from the motor.

[0034] In summary, the utility model has a simple structure, a reasonable design, and a good sealing performance of the fan pump body, and can be applied to some chemical production, toxic gas transportation and other occasions to avoid leakage.

[0035] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A highly sealed anti-corrosion high-pressure fan, characterized in that: The invention comprises a motor, a pump casing, a pump cover and a fan impeller, wherein the motor is installed on the back of the pump casing, the rotating shaft of the motor passes through the central hole of the pump casing, the pump cover is installed on the front side of the pump casing, the interior of the pump cover and the interior of the pump casing form a pump chamber, the fan impeller is located in the pump chamber and is connected to the rotating shaft of the motor, a circle of pump casing sealing ring groove is provided on the front edge of the pump casing, a pump casing sealing ring is provided in the pump casing sealing ring groove, the pump casing sealing ring is in sealing contact with the back edge of the pump cover, an air inlet and an air outlet are provided on the back side of the pump casing, an air inlet joint is installed at the air inlet, an air outlet joint is installed at the air outlet, a circle of air inlet sealing ring groove is provided on the mouth edge of the air inlet, an air inlet sealing ring is provided in the air inlet sealing ring groove, the air inlet sealing ring is in sealing contact with the air inlet joint, a circle of air outlet sealing ring groove is provided on the mouth edge of the air outlet, an air outlet sealing ring is provided in the air outlet sealing ring groove, the air outlet sealing ring is in sealing contact with the air outlet joint.

2. A highly sealed anti-corrosion high pressure blower according to claim 1, characterized in that: A front end cover is provided in the middle of the front face of the pump cover, a front bearing is provided inside the front end cover, the head end of the rotating shaft of the motor is installed in the center hole of the front bearing, and an end cover sealing ring is provided between the front end cover and the pump cover.

3. A highly sealed anti-corrosion high pressure blower according to claim 2, characterized in that: The front bearing is configured as a high temperature bearing with a temperature resistance of 180°C.

4. The highly sealed anti-corrosion high-pressure blower according to claim 1, characterized in that: A front isolating ring is arranged at the inner center hole of the pump cover, the rotating shaft of the motor passes through the center hole of the front isolating ring, and a front double-layer carbon oil seal is arranged at the center hole of the front isolating ring.

5. The highly sealed anti-corrosion high-pressure blower according to claim 1, characterized in that: A rear isolating ring is arranged at the inner center hole of the pump housing, the rotating shaft of the motor passes through the center hole of the rear isolating ring, and a rear double-layer carbon oil seal is arranged at the center hole of the rear isolating ring.

6. The highly sealed anti-corrosion high-pressure blower according to claim 1, characterized in that: The inner surfaces of the pump casing and the pump cover are respectively provided with Teflon coatings.

7. The highly sealed anti-corrosion high-pressure blower according to claim 1, characterized in that: An isolation flange is arranged between the motor and the pump housing, the rotating shaft of the motor passes through the center hole of the isolation flange, and a flange double-layer carbon oil seal is arranged at the center hole of the isolation flange.

8. The highly sealed anti-corrosion high-pressure blower according to claim 1, characterized in that: A fan protective cover is arranged at the tail of the motor, a heat dissipation fan impeller is arranged inside the fan protective cover, and the heat dissipation fan impeller is connected to the tail end of the rotating shaft of the motor.

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