CN112081755A - Low-temperature fan - Google Patents
Low-temperature fan Download PDFInfo
- Publication number
- CN112081755A CN112081755A CN202011140977.5A CN202011140977A CN112081755A CN 112081755 A CN112081755 A CN 112081755A CN 202011140977 A CN202011140977 A CN 202011140977A CN 112081755 A CN112081755 A CN 112081755A
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- CN
- China
- Prior art keywords
- magnetic fluid
- component
- water circulation
- fluid sealing
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
- F04D29/104—Shaft sealings especially adapted for elastic fluid pumps the sealing fluid being other than the working fluid or being the working fluid treated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a low-temperature fan, and relates to the technical field of fans. The invention comprises a base and a magnetofluid sealing water circulation component; an air collector, a machine shell and a supporting platform are arranged above the base; the air collector is arranged at the air inlet end of the shell; the shell is arranged on the base through a four-column supporting structure; the supporting platform is arranged on one side of the machine shell; a motor is arranged at the upper part of the supporting platform; one side of the motor is provided with a magnetic fluid sealing component; a transmission shaft is arranged on the magnetic fluid sealing component; one end of the transmission shaft is connected to an output shaft of the motor through a coupler; the other end of the transmission shaft penetrates and extends into the shell and is provided with an impeller; the magnetofluid sealing water circulation component is used for providing hot water for the magnetofluid sealing component for cyclic heating; and a water circulation loop is formed between the magnetic fluid sealing water circulation component and the magnetic fluid sealing component through a water inlet pipeline and a water outlet pipeline. The invention can realize the ultralow temperature working state and has higher market application value.
Description
Technical Field
The invention belongs to the technical field of fans, and particularly relates to a low-temperature fan.
Background
At present, in the field of low-temperature centrifugal fans, the working temperature of the fan is usually about-40 ℃, but the general fan cannot be effectively applied in the field of ultralow-temperature air at-196 ℃ generated by low-temperature refrigeration of liquid nitrogen, and the current ultralow-temperature fan which is used at low temperature of-196 ℃ and has the pressure of 4KPa or above is not precedent in China. Therefore, a low temperature fan is urgently needed to solve the above problems.
Disclosure of Invention
The present invention is directed to a low temperature fan, which solves the above problems of the prior art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a low-temperature fan, which comprises a base and a magnetofluid sealing water circulation component; an air collector, a machine shell and a supporting platform are arranged above the base; the air collector is arranged at the air inlet end of the shell; the shell is arranged on the base through a four-column supporting structure; the supporting platform is arranged on one side of the machine shell; a motor is arranged at the upper part of the supporting platform; one side of the motor is provided with a magnetic fluid sealing component; a transmission shaft is arranged on the magnetic fluid sealing component; one end of the transmission shaft is connected to an output shaft of the motor through a coupler; the other end of the transmission shaft penetrates and extends into the shell and is provided with an impeller; the magnetofluid sealing water circulation component is used for providing hot water for the magnetofluid sealing component for cyclic heating; and a water circulation loop is formed between the magnetic fluid sealing water circulation component and the magnetic fluid sealing component through a water inlet pipeline and a water outlet pipeline.
Further, the magnetic fluid sealing water circulation component is arranged above the motor; the magnetic fluid sealing water circulation component is arranged on the base through a support.
The invention has the following beneficial effects:
according to the low-temperature fan designed by the invention, the shell is arranged on the base through the four-column supporting structure, so that when the shell is contacted with ultralow-temperature air and is subjected to cold shrinkage deformation, the force borne by the shell is contracted towards the direction of a central line, and parts such as a magnetic fluid sealing part and the like cannot be influenced; by adopting the magnetic fluid sealing component and the coupling for transition between the casing and the motor, the ultralow temperature is prevented from being transmitted to the motor through the casing, damaging the motor and transmitting the ultralow temperature to outside air; the magnetofluid sealing water circulation component is used for providing hot water circulation for the interior of the magnetofluid in the magnetofluid sealing component, so that the normal and efficient work of the low-temperature fan is ensured; the working temperature of a shaft, a bearing, the magnetic fluid and the like in the magnetic fluid is ensured to be 20 ℃ through hot water circulation heating of the magnetic fluid sealing water circulation component, and the fan and the motor can be ensured to work at the temperature of-196 ℃ through the design, so that the magnetic fluid sealing water circulation component has higher market application value.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a low temperature fan of the present invention;
FIG. 2 is a top view of the structure of FIG. 1;
FIG. 3 is a schematic structural view of the wind collector, the housing and the supporting platform of the present invention installed on the base;
fig. 4 is a schematic structural diagram of the water inlet pipeline and the water outlet pipeline which are arranged on the magnetic fluid sealing part.
In the drawings, the components represented by the respective reference numerals are listed below:
the device comprises a base 1, a magnetic fluid sealing water circulation component 2, an air collector 3, a machine shell 4, a support table 5, a four-column support structure 6, a motor 7, a coupler 8, a transmission shaft 9, a magnetic fluid sealing component 10, an impeller 11, a water inlet pipeline 12, a water outlet pipeline 13 and a support 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention relates to a low temperature fan, which includes a base 1 and a magnetic fluid sealing water circulation unit 2; an air collector 3, a machine shell 4 and a supporting platform 5 are arranged above the base 1; the air collector 3 is arranged at the air inlet end of the shell 4; the machine shell 4 is arranged on the base 1 through a four-column supporting structure 6; the four-column support structure 6 includes four support columns; the four support columns are arranged around the casing 4, so that when the casing 4 is contacted with ultralow-temperature air and is deformed due to cold contraction, the force borne by the casing 4 is contracted towards the direction of a central line, and the parts such as the magnetic fluid sealing part 10 and the like cannot be influenced;
the support table 5 is arranged at one side of the machine shell 4; the upper part of the support table 5 is provided with a motor 7; one side of the motor 7 is provided with a magnetic fluid sealing component 10; a transmission shaft 9 is arranged on the magnetic fluid sealing component 10; one end of the transmission shaft 9 is connected to an output shaft of the motor 7 through a coupling 8; the other end of the transmission shaft 9 penetrates and extends into the machine shell 4 and is provided with an impeller 11;
the magnetic fluid sealing water circulation component 2 is arranged above the motor 7; the magnetic fluid sealing water circulation component 2 is arranged on the base 1 through a bracket 14; the magnetofluid sealing water circulation component 2 is used for providing hot water circulation heating for the magnetofluid sealing component 10; a water circulation loop is formed between the magnetic fluid sealing water circulation component 2 and the magnetic fluid sealing component 10 through a water inlet pipeline 12 and a water outlet pipeline 13.
Parts such as the base 1, the air collector 3, the casing 4, the four-column supporting structure 6, the impeller 11, the support 14 and the like are all made of stainless steel 304L, and cryogenic treatment of soaking in liquid nitrogen is performed after single pieces are processed, so that the material stability and the service life of the ultralow-temperature fan material at the temperature of-196 ℃ are ensured.
Wherein, the magnetic fluid sealing component 10 is provided with three branch water inlets and three corresponding branch water outlets; that is, three water inlet pipelines 12 and three water outlet pipelines 13 are arranged between the magnetic fluid sealing water circulation component 2 and the magnetic fluid sealing component 10 for circulating water.
Wherein, adopt the thick polyimide gasket of 5mm to separate cold when being connected between four post bearing structure 6 and the base 1, guarantee on the ultralow temperature of casing 4 does not transmit base 1.
When low-temperature air at-196 ℃ is sucked by a fan, in the process of sending out, firstly, the ultralow-temperature air directly contacts the air collector 3, the shell 4 and the impeller 11, and at the moment, the parts are contracted by the low-temperature ultralow-temperature influence material, and at the moment, because the shell 4 is connected with the base 1 and the four-column supporting structure 6 design is carried out according to the central line, the whole body is contracted towards the central line direction of the shell 4, so that the magnetic fluid sealing part 10 cannot be influenced; a magnetic fluid sealing component 10 and a coupler 8 are adopted for transition between the casing 4 and the motor 7, so that the ultra-low temperature is prevented from being transmitted to the motor 7 through the casing 4, the motor 7 is prevented from being damaged and the ultra-low temperature is prevented from being transmitted to the outside air, the casing 4 and the magnetic fluid sealing component 10 are connected through a flange, a polyimide gasket is used in the middle, and two temperature sensors, three branch water inlets and three corresponding branch water outlets are designed on the magnetic fluid sealing component 10; in the process, because the lowest service temperature of the magnetic fluid in the magnetic fluid sealing part 10 is-60 ℃, a magnetic fluid sealing water circulation part 2 is designed to provide hot water circulation for the interior of the magnetic fluid, an electric heater, a water tank, a temperature sensor, a water pump and the like are arranged in the magnetic fluid sealing water circulation part 2, the normal and efficient work of the low-temperature fan is ensured, the working temperature of a shaft, a bearing, the magnetic fluid and the like in the magnetic fluid is ensured to be 20 ℃ through the hot water circulation heating of the magnetic fluid sealing water circulation part 2, and the fan and the motor 7 can be ensured to work at-196 ℃ through the design.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (2)
1. A low-temperature fan is characterized by comprising a base (1) and a magnetic fluid sealing water circulation component (2);
an air collector (3), a shell (4) and a supporting platform (5) are arranged above the base (1); the air collector (3) is arranged at the air inlet end of the shell (4); the shell (4) is arranged on the base (1) through a four-column supporting structure (6);
the supporting platform (5) is arranged on one side of the shell (4); a motor (7) is arranged at the upper part of the support table (5); a magnetic fluid sealing component (10) is arranged on one side of the motor (7); a transmission shaft (9) is arranged on the magnetic fluid sealing component (10);
one end of the transmission shaft (9) is connected to an output shaft of the motor (7) through a coupler (8); the other end of the transmission shaft (9) penetrates through the casing (4) and extends into the casing and is provided with an impeller (11);
the magnetofluid sealing water circulation component (2) is used for providing hot water circulation heating for the magnetofluid sealing component (10); and a water circulation loop is formed between the magnetic fluid sealing water circulation component (2) and the magnetic fluid sealing component (10) through a water inlet pipeline (12) and a water outlet pipeline (13).
2. A low temperature fan according to claim 1, wherein the magnetic fluid sealing water circulation component (2) is arranged above the motor (7); the magnetic fluid sealing water circulation component (2) is arranged on the base (1) through a bracket (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020102231561 | 2020-03-26 | ||
| CN202010223156.1A CN111396331A (en) | 2020-03-26 | 2020-03-26 | Low-temperature fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112081755A true CN112081755A (en) | 2020-12-15 |
Family
ID=71434632
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010223156.1A Pending CN111396331A (en) | 2020-03-26 | 2020-03-26 | Low-temperature fan |
| CN202011140977.5A Pending CN112081755A (en) | 2020-03-26 | 2020-10-22 | Low-temperature fan |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010223156.1A Pending CN111396331A (en) | 2020-03-26 | 2020-03-26 | Low-temperature fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN111396331A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202884037U (en) * | 2012-03-14 | 2013-04-17 | 无锡康力电子有限公司 | Magnetofluid sealing device for vacuum coated transmission mechanism |
| CN203962461U (en) * | 2014-07-29 | 2014-11-26 | 上海汇森益发工业炉有限公司 | The seal arrangement of the cooling blower fan of vacuum furnace |
| CN105465004A (en) * | 2015-12-30 | 2016-04-06 | 镇江市丹徒区粮机厂有限公司 | Ultralow-temperature vacuum draught fan |
| CN106438448A (en) * | 2016-08-30 | 2017-02-22 | 四川三维鼓风机有限公司 | Denitration high-temperature boosting fan for fuel coal power plant |
| DE102015012277A1 (en) * | 2015-09-24 | 2017-03-30 | Ebm-Papst St. Georgen Gmbh & Co. Kg | fan unit |
| CN207647815U (en) * | 2017-12-27 | 2018-07-24 | 杭州市合源空气净化科技有限公司 | A kind of axial flow blower |
| CN108374895A (en) * | 2018-04-23 | 2018-08-07 | 杭州奔博科技有限公司 | Low temperature resistant compact device for sealing magnetic fluid |
| CN210033913U (en) * | 2019-06-13 | 2020-02-07 | 上海吉璨通风设备有限公司 | High and low temperature resistant fan |
-
2020
- 2020-03-26 CN CN202010223156.1A patent/CN111396331A/en active Pending
- 2020-10-22 CN CN202011140977.5A patent/CN112081755A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202884037U (en) * | 2012-03-14 | 2013-04-17 | 无锡康力电子有限公司 | Magnetofluid sealing device for vacuum coated transmission mechanism |
| CN203962461U (en) * | 2014-07-29 | 2014-11-26 | 上海汇森益发工业炉有限公司 | The seal arrangement of the cooling blower fan of vacuum furnace |
| DE102015012277A1 (en) * | 2015-09-24 | 2017-03-30 | Ebm-Papst St. Georgen Gmbh & Co. Kg | fan unit |
| CN105465004A (en) * | 2015-12-30 | 2016-04-06 | 镇江市丹徒区粮机厂有限公司 | Ultralow-temperature vacuum draught fan |
| CN106438448A (en) * | 2016-08-30 | 2017-02-22 | 四川三维鼓风机有限公司 | Denitration high-temperature boosting fan for fuel coal power plant |
| CN207647815U (en) * | 2017-12-27 | 2018-07-24 | 杭州市合源空气净化科技有限公司 | A kind of axial flow blower |
| CN108374895A (en) * | 2018-04-23 | 2018-08-07 | 杭州奔博科技有限公司 | Low temperature resistant compact device for sealing magnetic fluid |
| CN210033913U (en) * | 2019-06-13 | 2020-02-07 | 上海吉璨通风设备有限公司 | High and low temperature resistant fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111396331A (en) | 2020-07-10 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201215 |
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| RJ01 | Rejection of invention patent application after publication |