CN114263624A - Vortex type hydrogen circulating pump - Google Patents
Vortex type hydrogen circulating pump Download PDFInfo
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- CN114263624A CN114263624A CN202210079516.4A CN202210079516A CN114263624A CN 114263624 A CN114263624 A CN 114263624A CN 202210079516 A CN202210079516 A CN 202210079516A CN 114263624 A CN114263624 A CN 114263624A
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- volute
- circulating pump
- hydrogen circulating
- impeller
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Abstract
本发明的一种旋涡式氢气循环泵，涉及电机领域。其包括相互独立的定子总成和转子总成，定子总成和转子总成安装在一个外壳中，中间有隔板将二者隔开，定子总成通过轴向磁场驱动转子总成。本发明的一种旋涡式氢气循环泵，定/转子总成为两个相对独立的产品，其利用轴向磁场驱动转子总成，定子总成与转子总成之间通过低碳钢板将氢气的腐蚀有效的做到了隔绝。
The invention relates to a vortex hydrogen circulating pump, which relates to the field of motors. It includes a stator assembly and a rotor assembly that are independent of each other. The stator assembly and the rotor assembly are installed in a casing, and there is a partition in the middle to separate the two. The stator assembly drives the rotor assembly through an axial magnetic field. In the vortex hydrogen circulating pump of the present invention, the stator/rotor assembly is two relatively independent products, the rotor assembly is driven by the axial magnetic field, and the low carbon steel plate is used between the stator assembly and the rotor assembly to corrode the hydrogen gas. effectively isolated.
Description
Technical Field
The invention discloses a vortex type hydrogen circulating pump, and relates to the field of motors.
Background
The fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the reaction of the fuel cell, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, on one hand, energy is wasted, on the other hand, the environment is polluted, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated, and therefore, the hydrogen needs to be recycled. At present, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling.
Current hydrogen circulating pump mainly includes motor casing, bearing frame and the runner apron that is connected, forms the motor chamber between motor casing and the bearing frame, is equipped with the impeller between bearing frame and the runner apron, forms the pressure boost chamber, and the drive shaft of motor drives the high-speed rotatory completion of impeller and to gaseous pressure boost. The protective performance of the hydrogen circulating pump to hydrogen is extremely poor, the dynamic seal adopted between the rotating shaft and the shaft seat generates abrasion under the condition of long-time use, and hydrogen flows to the inside and corrodes components inside the motor.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a vortex type hydrogen circulating pump to overcome the defects of the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the vortex type hydrogen circulating pump includes mutually independent stator assembly and rotor assembly, the stator assembly and the rotor assembly are installed inside one casing, and separated by low carbon steel or zero carbon steel partition board with hydrogen corrosion preventing effect, and the stator assembly drives the rotor assembly via axial magnetic field.
Further, the shell includes motor casing and pump head spiral case, and the two meet and sealing connection, and the baffle is set up between motor casing and the pump head spiral case by clamp.
Furthermore, the two ends of the motor shell are communicated, one end of the motor shell is connected with the pump head volute, the other end of the motor shell is provided with the electric control shell, the electric control shell is used for sealing the motor shell, the electric control assembly is arranged in the electric control shell and is electrically connected with the stator assembly, and the pouring sealant is filled in the electric control shell and the motor shell.
Furthermore, the outside of the electric control shell is provided with a radiating fin.
Furthermore, one end of the pump head volute is open, the open end is connected with the motor shell, the other end of the pump head volute is provided with an end part wall, an air inlet pipeline and an air outlet pipeline which are communicated with the inside of the pump head volute are arranged on the end part wall, the partition plate and the end part wall form a pressurizing cavity, an impeller is arranged in the pressurizing cavity, and the impeller is connected with the rotor assembly.
Furthermore, the pump head volute has an inner circumferential wall, the middle of the inner side of the end wall is arched to form a protruding part, an annular flow passage is formed between the outer wall of the protruding part and the inner circumferential wall of the pump head volute, and the air inlet pipeline and the air outlet pipeline are communicated with the flow passage.
Furthermore, a round hole is formed in the protruding portion, a fixed shaft is installed in the round hole, the impeller is sleeved on the fixed shaft, and a bearing is arranged between the impeller and the fixed shaft.
Further, the partition plate is made of low-carbon steel.
Furthermore, the baffle is circular, square or dysmorphism, and the corresponding constant head tank that is equipped with is used for clamping the location baffle on the end face of motor casing.
Furthermore, one surface of the impeller, which is close to the partition plate, is provided with an inwards concave annular groove, the rotor assembly is installed in the annular groove and is fastened with the impeller through screws, and the edge of the impeller is clamped between the motor shell and the pump head volute.
Has the advantages that:
(1) according to the vortex type hydrogen circulating pump, the stator/rotor assembly is two relatively independent products, the rotor assembly is driven by the axial magnetic field, and the corrosion of hydrogen is effectively isolated for the first time between the stator assembly and the rotor assembly through the low-carbon steel plate;
(2) the stator assembly and the electronic control are integrated, and independent protection is arranged in the stator assembly, namely, pouring sealant with high heat conductivity coefficient is adopted in the stator assembly for pouring and sealing the stator assembly, so that the secondary isolation effect can be achieved by effectively protecting hydrogen corrosion, and heat can be better led to radiating fins, and the heat can be radiated more smoothly;
(3) different from the traditional hydrogen pump, the structure of coaxial series connection is not needed for power transmission, and only the single bearing is adopted for supporting the impeller, so that the structure is simpler, and the protection performance is stronger.
Drawings
FIG. 1 shows a block diagram of the present invention from an upper perspective;
FIG. 2 shows a block diagram of the present invention from a lower perspective;
FIG. 3 illustrates the internal structure of the present invention in cross-section;
figures 4, 5 show the exploded view of the invention from different perspectives;
fig. 6, 7 show, from different perspectives, an exploded view of a rotor assembly system according to the invention;
description of reference numerals: the pump comprises a stator assembly 1, a rotor assembly 2, a partition plate 3, a motor shell 4, a positioning groove 41, a pump head volute 5, an end wall, a protruding part 52, a circular hole 521, a flow channel 53, a sealing ring 6, an electronic control shell 7, a radiating fin 71, an electronic control assembly 8, an air inlet pipeline 9, an air outlet pipeline 10, an impeller 110, an annular groove 111, a fixed shaft 120 and a bearing 130.
Detailed Description
The invention is further described with reference to the drawings and the specific embodiments. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
The invention is further described with reference to the drawings and the specific embodiments. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, a vortex type hydrogen circulation pump includes a stator assembly 1 and a rotor assembly 2 which are independent of each other, the stator assembly 1 and the rotor assembly 2 are installed in a housing, a partition plate 3 is provided between the stator assembly 1 and the rotor assembly 2 to separate them, and the stator assembly 1 drives the rotor assembly 2 through an axial magnetic field. The rotor assembly 2 is driven by the axial magnetic field, so that the stator assembly 1 and the rotor assembly 2 are two independent system bodies, the middle seal adopts the static partition plate 3, abrasion is avoided, and the problem that the stator assembly 1 and related components are corroded by hydrogen is solved.
In this embodiment, the housing includes a motor housing 4 and a pump head volute 5, which are joined and hermetically connected, the motor housing 4 and the pump head volute 5 have a sealing ring 6 to achieve sealing, and the partition plate 3 is sandwiched between the motor housing 4 and the pump head volute 5. The separator 3 is preferably made of mild steel to prevent hydrogen corrosion, and the separator 3 is circular, square or irregular, and the end face of the motor housing 4 is correspondingly provided with a positioning groove 41 for clamping and positioning the separator 3. Hydrogen corrosion refers to the condition that when steel is exposed to high-temperature and high-pressure hydrogen environment, hydrogen atoms react with unstable carbides to generate methane on the surface of equipment or penetrate into the steel, so that the steel is decarburized, and the mechanical strength is permanently damaged. Methane generated in the steel cannot overflow and is accumulated in the steel to form huge local pressure, so that severe bulge cracking is developed. The baffle 3 is made of low-carbon steel or even zero-carbon steel, and can effectively prevent hydrogen corrosion.
In this embodiment, two ends of the motor housing 4 are communicated, one end of the motor housing 4 is connected with the pump head volute 5, the other end is provided with the electric control housing 7 to seal the motor housing 4, the electric control assembly 8 is arranged inside the electric control housing 7, the electric control assembly 8 is electrically connected with the stator assembly 1, the electric control housing 7 and the motor housing 4 are filled with the pouring sealant with high heat conductivity, and the heat dissipation fins 71 are arranged outside the electric control housing 7. The heat radiating fins 71 and the pouring sealant are connected into a whole, so that internal heat can be effectively conducted to the outside, the heat conducting area is increased, the corrosion of hydrogen between the stator assembly 1 and the rotor assembly 2 is effectively isolated for the first time through the partition plate 3, and the pouring sealant can play a role in secondary isolation.
The pouring sealant comprises a heat-conducting pouring sealant, the heat-conducting pouring sealant is used for bonding, sealing, encapsulating and coating protection of electronic components, the pouring sealant belongs to a liquid state before uncured, and has fluidity, the viscosity of a glue solution is different according to the material, the performance and the production process of a product, the use value of the pouring sealant can be realized after the pouring sealant is completely cured, and the pouring sealant can play the roles of water resistance, moisture resistance, dust prevention, insulation, heat conduction, confidentiality, corrosion resistance, temperature resistance and shock resistance after being cured. The heat conduction pouring sealant can also transfer the heat of the stator assembly 1 to the radiating fins 71 to help radiating, and during pouring, the stator assembly 1 is firstly installed in the motor shell 4, and then the whole pouring sealant is poured.
In this embodiment, one end of the pump head volute 5 is open, the open end is connected to the motor housing 4, the other end is provided with an end wall, the end wall is provided with an air inlet pipeline 9 and an air outlet pipeline 10 which are communicated with the inside of the pump head volute 5, the partition plate 3 and the end wall form a pressurizing cavity, the inside of the pressurizing cavity is provided with an impeller 110, the impeller 110 is connected with the rotor assembly 2, and hydrogen circulation is realized through high-speed rotation of the impeller 110. Air inlet pipeline 9 and gas outlet pipeline 10 are because the setting is on the tip wall, so under with pump head spiral case 5 when the vortex formula hydrogen circulating pump, motor casing 4 is last to be installed the predetermined position after, if there is water to produce in the vortex formula hydrogen circulating pump, can follow and flow in air inlet pipeline 9 and the gas outlet pipeline 10, prevent ponding.
In this embodiment the pump head volute 5 has an inner circumferential wall, the inside of the end wall being domed to form a projection 52, an annular flow passage 53 being formed between the outer wall of the projection 52 and the inner circumferential wall of the pump head volute 5, the inlet and outlet conduits 9, 10 communicating with the flow passage 53.
In the embodiment, the protruding portion 52 is provided with a circular hole 521, the fixed shaft 120 is mounted in the circular hole 521, the impeller 110 is sleeved on the fixed shaft 120, and the bearing 130 is disposed between the impeller 110 and the fixed shaft 120. Compared with the traditional fixing mode of the double bearings 130, the supporting mode of the single bearing 130 is stronger in protection.
In this embodiment, one surface of the impeller 110 adjacent to the partition 3 is provided with a concave annular groove 111, and the rotor assembly 2 is installed in the annular groove 111 and fastened with the impeller 110 through screws. And the edge of the impeller 110 is clamped between the motor housing 4 and the pump head volute 5, which improves the stability of the impeller 110 and also plays a role in sealing to a certain extent to prevent the hydrogen gas from corroding the rotor assembly 2. The impeller 110 is made of titanium alloy, so that hydrogen corrosion is effectively isolated, and the service life of the product is greatly prolonged.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210079516.4A CN114263624A (en) | 2022-01-24 | 2022-01-24 | Vortex type hydrogen circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210079516.4A CN114263624A (en) | 2022-01-24 | 2022-01-24 | Vortex type hydrogen circulating pump |
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| Publication Number | Publication Date |
|---|---|
| CN114263624A true CN114263624A (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210079516.4A Pending CN114263624A (en) | 2022-01-24 | 2022-01-24 | Vortex type hydrogen circulating pump |
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| CN (1) | CN114263624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292346A (en) * | 2023-03-27 | 2023-06-23 | 山东凯格瑞森能源科技有限公司 | Vortex type hydrogen circulating pump device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003139086A (en) * | 2001-10-29 | 2003-05-14 | Matsushita Electric Ind Co Ltd | Ultra-thin pump |
| WO2018140724A1 (en) * | 2017-01-27 | 2018-08-02 | Regal Beloit America, Inc. | Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof |
| CN109424553A (en) * | 2017-09-01 | 2019-03-05 | 三花亚威科电器设备（芜湖）有限公司 | Pump |
| CN110486298A (en) * | 2019-08-02 | 2019-11-22 | 烟台菱辰能源有限公司 | A kind of spiral vortex type hydrogen circulating pump based on disc type electric machine structure |
| CN210033890U (en) * | 2019-05-29 | 2020-02-07 | 浙江恒友机电有限公司 | Hydrogen circulating pump and fuel cell vehicle |
| CN113323895A (en) * | 2021-06-04 | 2021-08-31 | 烟台东德实业有限公司 | Corrosion-resistant vortex type hydrogen circulating pump |
| CN216867032U (en) * | 2022-01-24 | 2022-07-01 | 浙江智博能源科技有限公司 | Vortex type hydrogen circulating pump |
-
2022
- 2022-01-24 CN CN202210079516.4A patent/CN114263624A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003139086A (en) * | 2001-10-29 | 2003-05-14 | Matsushita Electric Ind Co Ltd | Ultra-thin pump |
| WO2018140724A1 (en) * | 2017-01-27 | 2018-08-02 | Regal Beloit America, Inc. | Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof |
| CN109424553A (en) * | 2017-09-01 | 2019-03-05 | 三花亚威科电器设备（芜湖）有限公司 | Pump |
| CN210033890U (en) * | 2019-05-29 | 2020-02-07 | 浙江恒友机电有限公司 | Hydrogen circulating pump and fuel cell vehicle |
| CN110486298A (en) * | 2019-08-02 | 2019-11-22 | 烟台菱辰能源有限公司 | A kind of spiral vortex type hydrogen circulating pump based on disc type electric machine structure |
| CN113323895A (en) * | 2021-06-04 | 2021-08-31 | 烟台东德实业有限公司 | Corrosion-resistant vortex type hydrogen circulating pump |
| CN216867032U (en) * | 2022-01-24 | 2022-07-01 | 浙江智博能源科技有限公司 | Vortex type hydrogen circulating pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292346A (en) * | 2023-03-27 | 2023-06-23 | 山东凯格瑞森能源科技有限公司 | Vortex type hydrogen circulating pump device |
| CN116292346B (en) * | 2023-03-27 | 2024-07-12 | 山东凯格瑞森能源科技有限公司 | Vortex type hydrogen circulating pump device |
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