CN220036939U - Rotor hollowing and icebreaking structure of hydrogen circulating pump - Google Patents
Rotor hollowing and icebreaking structure of hydrogen circulating pump Download PDFInfo
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- CN220036939U CN220036939U CN202320973618.0U CN202320973618U CN220036939U CN 220036939 U CN220036939 U CN 220036939U CN 202320973618 U CN202320973618 U CN 202320973618U CN 220036939 U CN220036939 U CN 220036939U
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- rotor
- plane
- male
- female
- male rotor
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 23
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 23
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 230000008014 freezing Effects 0.000 claims abstract description 22
- 238000007710 freezing Methods 0.000 claims abstract description 22
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 210000000078 claw Anatomy 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000007789 gas Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model relates to the field of ice breaking of hydrogen circulating pumps, in particular to a rotor hollowing and ice breaking structure of a hydrogen circulating pump. Including motor housing and the pump body, be equipped with the bearing frame between motor housing and the pump body, the inboard terminal surface of pump body is first plane, and the terminal surface clearance fit of first plane and male rotor and female rotor, the terminal surface that the bearing frame is close to male rotor and female rotor is the second plane, and the terminal surface clearance fit of second plane and male rotor and female rotor, the both ends face of male rotor and female rotor is equipped with the heavy groove respectively, the heavy groove is used for reducing freezing area after freezing between the both ends face of male rotor and female rotor and first plane, the second plane. The sinking groove can reduce the end surface area of the male rotor and the female rotor, thereby reducing the freezing area between the two end surfaces of the male rotor and the female rotor and the first plane and the second plane after freezing, greatly reducing the firmness after freezing, greatly reducing the ice breaking force, avoiding the phenomenon of motor locked rotor and protecting the motor.
Description
Technical field:
the utility model relates to the field of ice breaking of hydrogen circulating pumps, in particular to a rotor hollowing and ice breaking structure of a hydrogen circulating pump.
The background technology is as follows:
at present, when the hydrogen circulating pump works, because the hydrogen-containing mixed gas exhausted by the fuel cell is provided with some water vapor, a certain amount of water can be accumulated in the pressurizing cavity of the hydrogen circulating pump after the hydrogen circulating pump is used for a period of time, and because the two end surfaces of the male rotor and the female rotor are respectively in clearance fit with the end surfaces of the pump body and the bearing seat, the water can be reserved in the clearance and cannot be discharged in time, and the water can be condensed into ice after the hydrogen circulating pump stops when the temperature is too low in winter, so that the male rotor and the female rotor are frozen. The end surfaces of the male rotor and the female rotor are large in contact area with the end surfaces of the pump body and the bearing seat at present, the water retention amount is large, the freezing area after freezing is large, the freezing is too firm to realize ice breaking, the motor main shaft rotates when the motor is started, the male rotor and the female rotor are frozen and not rotated, and the ice cannot be broken, so that the motor is blocked, and even the motor is damaged when serious.
In summary, in the field of hydrogen circulation pumps, the problem of ice breaking of the male rotor and the female rotor has become a technical problem to be solved in industry.
The utility model comprises the following steps:
the utility model provides a hydrogen circulating pump rotor hollowing and ice breaking structure, which solves the problems that the contact area between the end surfaces of a male rotor and a female rotor and the end surfaces of a pump body and a bearing seat is large, the water retention amount is large, the freezing area is large after freezing, and the freezing is too firm, so that the ice breaking is difficult to realize in the past.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a hydrogen circulation pump rotor digs empty ice-breaking structure, includes motor housing and the pump body, is equipped with the bearing frame between motor housing and the pump body, be equipped with stator, rotor and main shaft in the motor housing, be equipped with driving gear and driven gear in the bearing frame, be equipped with male rotor and female rotor in the pump body, driving gear and male rotor are installed on the male rotor shaft, and driven gear and female rotor are installed on the female rotor shaft; the inner side end face of the pump body is a first plane, the first plane is in clearance fit with the end faces of the male rotor and the female rotor, the end face, close to the male rotor and the female rotor, of the bearing seat is a second plane, the second plane is in clearance fit with the end faces of the male rotor and the female rotor, the two end faces of the male rotor and the female rotor are respectively provided with a sinking groove, and the sinking grooves are used for reducing freezing areas after freezing between the two end faces of the male rotor and the female rotor and the first plane and the second plane.
The shape of the sinking groove is matched with the end face shape of the male rotor and the female rotor.
The number of blades of the male rotor and the female rotor is 2-6.
The male and female rotors comprise screw or Roots or claw or gear type structures.
The main shaft is made of aluminum alloy or stainless steel or 45 steel.
The main shaft and the male rotor shaft are integrally manufactured or connected through a coupler.
The utility model adopts the scheme and has the following advantages:
through be equipped with the heavy groove respectively at the both ends face of male rotor and female rotor, the end face area of male rotor and female rotor can be reduced to the heavy groove, thereby reduce the freezing area after freezing between the both ends face of male rotor and female rotor and first plane, the second plane, the firm degree greatly reduced after freezing has reduced the icebreaking power greatly, has avoided appearing the motor phenomenon of stalling, plays the guard action to the motor.
Description of the drawings:
fig. 1 is a schematic cross-sectional view of the present utility model.
Fig. 2 is a schematic perspective view of the male and female rotors of the present utility model.
Fig. 3 is a schematic perspective view of the pump body of the present utility model.
Fig. 4 is a schematic perspective view of a bearing seat according to the present utility model.
In the figure, 1, a motor shell, 2, a pump body, 3, a bearing seat, 4, a stator, 5, a rotor, 6, a main shaft, 7, a driving gear, 8, a driven gear, 9, a male rotor, 10, a female rotor, 11, a male rotor shaft, 12, a female rotor shaft, 13, a first plane, 14, a second plane, 15 and a sink.
The specific embodiment is as follows:
in order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings.
As shown in fig. 1-4, the rotor hollowing and ice breaking structure of the hydrogen circulating pump comprises a motor shell 1 and a pump body 2, wherein a bearing seat 3 is arranged between the motor shell 1 and the pump body 2, a stator 4, a rotor 5 and a main shaft 6 are arranged in the motor shell 1, a driving gear 7 and a driven gear 8 are arranged in the bearing seat 3, a male rotor 9 and a female rotor 10 are arranged in the pump body 2, the driving gear 7 and the male rotor 9 are arranged on a male rotor shaft 11, and the driven gear 8 and the female rotor 10 are arranged on a female rotor shaft 12; the inner side end face of the pump body 2 is a first plane 13, the first plane 13 is in clearance fit with the end faces of the male rotor 9 and the female rotor 10, the end face, close to the male rotor 9 and the female rotor 10, of the bearing seat 3 is a second plane 14, the second plane 14 is in clearance fit with the end faces of the male rotor 9 and the female rotor 10, the two end faces of the male rotor 9 and the female rotor 10 are respectively provided with a sink 15, and the sink 15 is used for reducing freezing areas after freezing between the two end faces of the male rotor 9 and the female rotor 10 and the first plane 13 and the second plane 14. In addition, the sink 15 can play a certain role in pre-exhausting, in the opening process of the closed cavity and the exhaust port, backflow impact can be caused due to pressure difference, noise and flow pulsation are relatively large, the sink 15 can firstly enter a part of gas at the outlet from the side surface, the pressure difference at the moment of opening the closed volume of the impeller can be reduced, and the purposes of reducing noise and pulsation are achieved.
The shape of the sinking groove 15 is matched with the end face shapes of the male rotor 9 and the female rotor 10, and the thickness of the outer wall of the sinking groove 15 is made to be very thin during processing, so that the end face areas of the male rotor and the female rotor are reduced as much as possible, and the freezing area is reduced.
The number of blades of the male rotor 9 and the female rotor 10 is 2-6, and the rotor is suitable for rotor structures with various blade numbers.
The male rotor 9 and the female rotor 10 comprise screw-type or roots-type or claw-type or gear-type structures.
The main shaft 6 is made of aluminum alloy or stainless steel or 45 steel.
The main shaft 6 is integrally formed with the male rotor shaft 11 or is connected by a coupling.
Working principle:
when the hydrogen circulating pump works, the main shaft 6 of the motor drives the male rotor shaft 11 to rotate, the male rotor shaft 11 drives the male rotor 9 to rotate on one hand, the driving gear 7 drives the driving gear 7 to rotate on the other hand, the driving gear 7 drives the driven gear 8 to rotate, the driven gear 8 drives the female rotor 10 on the female rotor shaft 12 to synchronously rotate, and the male rotor and the female rotor 10 of the male rotor 9 cooperate to realize the pressurizing function of the hydrogen circulating pump. When the temperature is too low in winter after the machine is stopped, water reserved between the end surfaces of the male rotor 9 and the female rotor 10 and the first plane 13 and the second plane 14 of the pump body 2 and the bearing seat 3 can be frozen into ice, due to the existence of the sinking groove 15, the frozen area between the two end surfaces of the male rotor 9 and the female rotor 10 and the first plane 13 and the second plane 14 is very small, the firmness degree after freezing is greatly reduced, the ice breaking force is greatly reduced, the phenomenon of motor locked rotation is avoided, and the motor is protected.
The above embodiments are not to be taken as limiting the scope of the utility model, and any alternatives or modifications to the embodiments of the utility model will be apparent to those skilled in the art and fall within the scope of the utility model.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (6)
1. The utility model provides a hydrogen circulating pump rotor digs sky icebreaking structure which characterized in that: the motor comprises a motor shell and a pump body, wherein a bearing seat is arranged between the motor shell and the pump body, a stator, a rotor and a main shaft are arranged in the motor shell, a driving gear and a driven gear are arranged in the bearing seat, a male rotor and a female rotor are arranged in the pump body, the driving gear and the male rotor are arranged on a male rotor shaft, and the driven gear and the female rotor are arranged on a female rotor shaft; the inner side end face of the pump body is a first plane, the first plane is in clearance fit with the end faces of the male rotor and the female rotor, the end face, close to the male rotor and the female rotor, of the bearing seat is a second plane, the second plane is in clearance fit with the end faces of the male rotor and the female rotor, the two end faces of the male rotor and the female rotor are respectively provided with a sinking groove, and the sinking grooves are used for reducing freezing areas after freezing between the two end faces of the male rotor and the female rotor and the first plane and the second plane.
2. The hydrogen circulation pump rotor hollowing out and icebreaking structure according to claim 1, wherein: the shape of the sinking groove is matched with the end face shape of the male rotor and the female rotor.
3. The hydrogen circulation pump rotor hollowing out and icebreaking structure according to claim 1, wherein: the number of blades of the male rotor and the female rotor is 2-6.
4. The hydrogen circulation pump rotor hollowing out and icebreaking structure according to claim 1, wherein: the male and female rotors comprise screw or Roots or claw or gear type structures.
5. The hydrogen circulation pump rotor hollowing out and icebreaking structure according to claim 1, wherein: the main shaft is made of aluminum alloy or stainless steel or 45 steel.
6. The hydrogen circulation pump rotor hollowing out and icebreaking structure according to claim 1, wherein: the main shaft and the male rotor shaft are integrally manufactured or connected through a coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320973618.0U CN220036939U (en) | 2023-04-23 | 2023-04-23 | Rotor hollowing and icebreaking structure of hydrogen circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320973618.0U CN220036939U (en) | 2023-04-23 | 2023-04-23 | Rotor hollowing and icebreaking structure of hydrogen circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220036939U true CN220036939U (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320973618.0U Active CN220036939U (en) | 2023-04-23 | 2023-04-23 | Rotor hollowing and icebreaking structure of hydrogen circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220036939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116480579A (en) * | 2023-04-23 | 2023-07-25 | 烟台东德实业有限公司 | Method for hollowing and breaking ice by hydrogen circulating pump |
-
2023
- 2023-04-23 CN CN202320973618.0U patent/CN220036939U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116480579A (en) * | 2023-04-23 | 2023-07-25 | 烟台东德实业有限公司 | Method for hollowing and breaking ice by hydrogen circulating pump |
| CN116480579B (en) * | 2023-04-23 | 2024-08-13 | 烟台东德实业有限公司 | Method for hollowing and breaking ice by hydrogen circulating pump |
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