CN214660829U - Icebreaking hydrogen circulating pump - Google Patents
Icebreaking hydrogen circulating pump Download PDFInfo
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- CN214660829U CN214660829U CN202120602399.6U CN202120602399U CN214660829U CN 214660829 U CN214660829 U CN 214660829U CN 202120602399 U CN202120602399 U CN 202120602399U CN 214660829 U CN214660829 U CN 214660829U
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Abstract
The utility model relates to an icebreaking hydrogen circulating pump, including motor, gear chamber and booster, the output shaft of motor drives the interior negative rotor of booster, the rotation of positive rotor through the gear in the gear chamber and carries out the pressure boost to gas, and the one end tip that the motor was kept away from to the booster is equipped with air inlet and gas vent, and the casing of booster is equipped with heating channel, the water inlet is connected to heating channel one end, and the delivery port is connected to the other end. In winter, before the motor starts, hot water is injected into the heating channel from the water inlet, and after the internal circulation of the heating channel, the hot water is discharged from the water outlet, so that the temperature of the compression cavity inside the shell of the supercharger can be raised in the process, ice formed by water vapor on the female rotor and the male rotor is melted, and after the motor starts, the problem that the motor spindle rotates and the rotor is frozen and does not rotate is solved, the phenomenon of motor stalling is avoided, and the motor is protected.
Description
The technical field is as follows:
the utility model relates to an icebreaking hydrogen circulating pump.
Background art:
the fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the fuel cell reaction, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, the hydrogen is on one hand wasted energy, on the other hand pollutes the environment, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated. Therefore, it is necessary to recover and reuse such hydrogen. At present, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling.
When the common hydrogen circulating pump works, the hydrogen-containing mixed gas discharged by the fuel cell contains some water vapor, a certain amount of water is accumulated in a rotor compression cavity of the hydrogen circulating pump after the hydrogen circulating pump is used for a period of time, if the water is not discharged in time, the water is condensed into ice after the hydrogen circulating pump is stopped in winter, and thus the rotor is frozen; in order to solve the problems, the existing hydrogen circulating pump is provided with an exhaust port at the bottom of a supercharger, so that although the design can discharge part of water in a compression cavity from the exhaust port, the water accumulation in the compression cavity is reduced, the problem of water accumulation in the supercharger cannot be fundamentally eliminated, because when the temperature is too low, water vapor in the compression cavity can freeze due to too low temperature, a rotor can be frozen, when a motor is started, a motor spindle rotates, and the rotor is not rotated due to freezing, so that the motor is locked, and even the motor is damaged in serious cases.
The utility model has the following contents:
the utility model discloses a remedy prior art not enough, provide an icebreaking hydrogen circulating pump, solved because of the temperature crosses low the frozen problem that freezes the rotor that leads to compressing intracavity portion vapor, avoided appearing the stifled phenomenon of changeing of motor, played the guard action to the motor.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the utility model provides an icebreaking hydrogen circulating pump, includes motor, gear chamber and booster, the output shaft of motor drives the interior negative rotor of booster, the rotation of positive rotor through the gear of gear chamber and carries out the pressure boost to gas, and the one end tip that the motor was kept away from to the booster is equipped with air inlet and gas vent, and the casing of booster is equipped with heating channel, the water inlet is connected to heating channel one end, and the delivery port is connected to the other end.
Preferably, the heating passage is provided inside or on an outer surface of a housing of the supercharger.
Preferably, the heating channel is an annular channel.
Preferably, the heating channel is a spiral channel.
Preferably, the heating channel is a straight channel.
Preferably, the exhaust port is arranged at the bottom of the supercharger.
Preferably, the female rotor and the male rotor are made of a 7-series aluminum alloy.
Preferably, the female rotor and the male rotor are roots rotors or claw rotors.
Preferably, the motor drives the female rotor and the male rotor to rotate positively and negatively to break ice.
Preferably, the surfaces of the female rotor and the male rotor are provided with low-friction-coefficient wear-resistant coatings.
The utility model adopts the above technical scheme, have following advantage:
(1) the shell of the supercharger is provided with a heating channel, hot water is injected into the heating channel from a water inlet before the motor is started in winter, and is discharged from a water outlet after the hot water circulates in the heating channel, so that the temperature of a compression cavity in the shell of the supercharger can be raised in the process, ice formed by water vapor on the female rotor and the male rotor is melted, and after the motor is started, the problem that a motor spindle rotates and the rotors are not frozen to rotate is solved, the phenomenon of motor stalling is avoided, and the motor is protected;
(2) even if a small amount of water vapor is frozen in the compression cavity, the motor can drive the Roots rotor or the claw rotor to rotate forward and backward for ice breaking, and the Roots rotor structure is relatively thick and strong, so that the Roots rotor structure cannot damage the Roots rotor or the claw rotor during ice breaking; the claw type rotor can obtain larger pumping speed under the condition that the diameter and the center distance of the pump cavity are the same, and is beneficial to pumping out water vapor.
(3) In addition, the water in the heating channel can also play a role in shock absorption and noise reduction.
Description of the drawings:
fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic top sectional view of the present invention.
Fig. 3 is a schematic view of the sectional structure of the front view of the present invention.
In the figure, 1, a motor, 2, a gear chamber, 3, a supercharger, 4, a female rotor, 5, a male rotor, 6, an air inlet, 7, an air outlet, 8, a water inlet, 9, a water outlet, 10 and a heating channel.
The specific implementation mode is as follows:
in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
In the embodiment shown in fig. 1-3, an ice-breaking hydrogen circulating pump includes a motor 1, a gear chamber 2 and a supercharger 3, an output shaft of the motor 1 drives a female rotor 4 and a male rotor 5 in the supercharger 3 to rotate through a gear in the gear chamber 2 to supercharge gas, an air inlet 6 and an air outlet 7 are arranged at one end of the supercharger 3 far away from the motor 1, the air outlet 7 is arranged at the bottom of the supercharger 3, a heating channel 10 is arranged on a housing of the supercharger 3, one end of the heating channel 10 is connected with a water inlet 8, and the other end of the heating channel 10 is connected with a water outlet 9. In winter, before motor 1 starts, earlier with hot water from water inlet 8 injection heating channel 10, after heating channel 10 inner loop, discharge from delivery port 9, this in-process can rise the inside compression chamber temperature of casing of booster 3, make the ice that vapor formed on negative rotor 4, the positive rotor 5 melt, after motor 1 starts, solved motor 1 main shaft rotation and the not rotatory problem of rotor freezing, avoided appearing motor 1 stalling phenomenon, play the guard action to motor 1. The surfaces of the gear chamber 2 and the supercharger 3 are subjected to surface hardening treatment, and the hardness of the gear chamber and the supercharger is higher than that of an ice layer, so that the gear chamber and the supercharger cannot be scratched.
The heating passage 10 is provided inside or on the outer surface of the housing of the supercharger 3.
The heating channel 10 may be one of a circular channel, a spiral channel or a straight channel.
The female rotor 4 and the male rotor 5 are made of 7-series aluminum alloy. The 7-series aluminum alloy represents that 7075 mainly contains zinc element, also belongs to aviation series, is aluminum-magnesium-zinc-copper alloy, is heat-treatable alloy, belongs to super-hard aluminum alloy, has good wear resistance, and 7075 aluminum plate is stress-relieved, can not deform or warp after being processed, and all the extra-large and extra-thick 7075 aluminum plates can ensure no sand holes and impurities through ultrasonic detection, so that the 7075 aluminum plate has high heat conductivity, the forming time can be shortened, and the working efficiency is improved. The main characteristic is high hardness, 7075 is high hardness, high strength aluminum alloy, commonly used for manufacturing aircraft structures.
The female rotor 4 and the male rotor 5 are roots rotors or claw rotors. The Roots rotor structure is adopted, is relatively thick and strong, and cannot damage the Roots rotor structure during ice breaking; the claw type rotor can obtain larger pumping speed under the condition that the diameter and the center distance of the pump cavity are the same, and is beneficial to pumping out water vapor.
The motor 1 drives the female rotor 4 and the male rotor 5 to rotate positively and negatively to break ice. An output shaft of the motor 1 drives a female rotor 4 and a male rotor 5 in the supercharger 3 to rotate through a gear in the gear chamber 2, so as to break ice.
And the surfaces of the female rotor 4 and the male rotor 5 are provided with low-friction-coefficient wear-resistant coatings. The low-friction coefficient wear-resistant coating adopts ENKUN-5 spraying graphite antifriction coating, and has the effects that water is not easy to remain on the rotor, and ice has poor adhesive capacity on the rotor and is easy to fall off.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (10)
1. The utility model provides an icebreaking hydrogen circulating pump which characterized in that: including motor, gear chamber and booster, the output shaft of motor drives the interior negative rotor of booster, the rotation of positive rotor through the gear of gear chamber and carries out the pressure boost to gas, and the one end tip that the motor was kept away from to the booster is equipped with air inlet and gas vent, and the casing of booster is equipped with heating channel, the water inlet is connected to heating channel one end, and the delivery port is connected to the other end.
2. The icebreaking hydrogen circulation pump according to claim 1, characterized in that: the heating channel is arranged inside or on the outer surface of the shell of the supercharger.
3. An ice-breaking hydrogen circulation pump according to claim 1 or 2, characterized in that: the heating channel is an annular channel.
4. An ice-breaking hydrogen circulation pump according to claim 1 or 2, characterized in that: the heating channel is a spiral channel.
5. An ice-breaking hydrogen circulation pump according to claim 1 or 2, characterized in that: the heating channel is a straight channel.
6. The icebreaking hydrogen circulation pump according to claim 1, characterized in that: the exhaust port is arranged at the bottom of the supercharger.
7. The icebreaking hydrogen circulation pump according to claim 1, characterized in that: the female rotor and the male rotor are made of 7-series aluminum alloy.
8. The icebreaking hydrogen circulation pump according to claim 1, characterized in that: the female rotor and the male rotor are roots rotors or claw rotors.
9. The icebreaking hydrogen circulation pump according to claim 1, characterized in that: the motor drives the female rotor and the male rotor to rotate positively and negatively to break ice.
10. The icebreaking hydrogen circulation pump according to claim 1, characterized in that: and the surfaces of the female rotor and the male rotor are provided with low-friction-coefficient wear-resistant coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120602399.6U CN214660829U (en) | 2021-03-24 | 2021-03-24 | Icebreaking hydrogen circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120602399.6U CN214660829U (en) | 2021-03-24 | 2021-03-24 | Icebreaking hydrogen circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214660829U true CN214660829U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120602399.6U Active CN214660829U (en) | 2021-03-24 | 2021-03-24 | Icebreaking hydrogen circulating pump |
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| CN (1) | CN214660829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135485A (en) * | 2022-01-10 | 2022-03-04 | 江苏航空职业技术学院 | Annular magnetic force driven hydrogen circulating pump |
| CN114962266A (en) * | 2022-05-08 | 2022-08-30 | 烟台东德实业有限公司 | One-way bearing type ice-breaking hydrogen circulating pump |
-
2021
- 2021-03-24 CN CN202120602399.6U patent/CN214660829U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135485A (en) * | 2022-01-10 | 2022-03-04 | 江苏航空职业技术学院 | Annular magnetic force driven hydrogen circulating pump |
| CN114135485B (en) * | 2022-01-10 | 2024-04-19 | 江苏航空职业技术学院 | Annular magnetic force driving hydrogen circulating pump |
| CN114962266A (en) * | 2022-05-08 | 2022-08-30 | 烟台东德实业有限公司 | One-way bearing type ice-breaking hydrogen circulating pump |
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