CN114382732A - Low-temperature hydrogen ejector - Google Patents
Low-temperature hydrogen ejector Download PDFInfo
- Publication number
- CN114382732A CN114382732A CN202011131701.0A CN202011131701A CN114382732A CN 114382732 A CN114382732 A CN 114382732A CN 202011131701 A CN202011131701 A CN 202011131701A CN 114382732 A CN114382732 A CN 114382732A
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- China
- Prior art keywords
- cut
- valve plate
- pipe
- outlet
- nozzle
- 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.)
- Granted
Links
- 239000001257 hydrogen Substances 0.000 title claims abstract description 58
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 58
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 238000009792 diffusion process Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 239000007788 liquid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 231100000817 safety factor Toxicity 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/24—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention provides a low-temperature hydrogen ejector, which comprises: an inlet adapter, a working pipe, a nozzle, a pump body, an injection pipe, an injection adapter, a corrugated pipe, a cut-off part, an outlet pipe and an outlet adapter, the cut-off part comprises a cut-off valve plate and a cut-off pull rod connected with the cut-off valve plate, the center of the cut-off valve plate is provided with a flow passage hole, the cut-off pull rod can move, the motion of the cut-off valve plate is driven by the motion of the cut-off pull rod, so that the cut-off valve plate gradually seals the flow channel in the mixing chamber, and the cut-off valve plate is brought into contact with the outlet of the nozzle to close the nozzle outlet, so that the flow path of the working pipe is closed, thereby realizing the flow path of the working pipe, isolating the flow path of the injection pipe from the flow path of the outlet pipe and ensuring that in an emergency state, and through external intervention, the shutoff of each flow passage is quickly realized, and the safety and the reliability of the hydrogen ejector are ensured.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a low-temperature hydrogen ejector.
Background
With the continuous development of low temperature technology, the demand of disciplines in various fields on low temperature equipment is continuously increased, a low temperature environment is created, various special requirements can be met, for example, in the field of energy, the efficient utilization of hydrogen energy is realized, the storage, the transportation and the utilization can be carried out by adopting a liquid hydrogen mode, and in the process, a large-scale hydrogen liquefaction refrigerating machine is indispensable. The large hydrogen liquefaction refrigerating machine can efficiently provide cold energy, and the hydrogen is liquefied into liquid hydrogen, so that the tank wagon storage and transportation and the subsequent hydrogenation station utilization are facilitated.
Need the hydrogen ejector to realize the cooling liquefaction once more of liquid hydrogen after the inside evaporation of storage tank in the hydrogen liquefaction system, specifically, flow into the hydrogen ejector through one high-pressure working fluid, realize the inflation step-down, become high-speed low pressure fluid, and then introduce the hydrogen vapour of penetrating the end and introduce the suction chamber of ejector, this partial hydrogen vapour is because the evaporation capacity that normal parahydrogen conversion leads to in the liquid hydrogen storage tank. The hydrogen vapor at the injected position leaves the hydrogen injector after passing through the mixing chamber and the diffusion chamber, flows into the heat exchanger for heat exchange and temperature reduction, and is liquefied again. The process can effectively utilize the cold quantity, and the phenomenon that the evaporated hydrogen flows back to the compressor to cause the loss of the cold quantity in the process is avoided.
In addition, in the process of hydrogen energy utilization, a cryogenic pump is needed to lead liquid hydrogen out of the storage tank, and due to the existence of mechanical moving parts, the common cryogenic pump has the problems of operation stability and reliability at low temperature, and meanwhile, heat leakage in the operation process also causes great cold loss. Therefore, the hydrogen ejector can realize ejection utilization of liquid hydrogen through a strand of high-pressure hydrogen, avoids moving parts in the whole process, has no heat loss leakage in a low-temperature environment, and has great advantages.
The most similar implementation scheme is a hydrogen injector for automobiles, which is applied to the field of fuel cells, and the hydrogen injector is used for adjusting the flow and pressure of injected hydrogen so as to prolong the service life and improve the reaction efficiency of a fuel cell stack. In the review of the development of large hydrogen liquefaction processes from 1898 to 2009, cryogenic processes with hydrogen ejectors were mentioned, but the processes did not introduce the relevant structural and safety factors of hydrogen ejectors.
Disclosure of Invention
In view of the above, there is a need for a safe and reliable cryogenic hydrogen eductor.
In order to solve the problems, the invention adopts the following technical scheme:
a low temperature hydrogen eductor comprising: the device comprises an inlet adapter, a working pipe, a nozzle, a pump body, an injection pipe, an injection adapter, a corrugated pipe, a cut-off part, an outlet pipe and an outlet adapter;
the two ends of the working pipe are connected with the inlet adapter and the nozzle, the pump body is connected with one end of the ejector pipe, the other end of the ejector pipe is also connected with the ejector adapter, the pump body is connected with one end of the outlet pipe, the other end of the outlet pipe is also connected with the outlet adapter, the outlet pipe is also connected with the corrugated pipe, the cut-off part is arranged in the corrugated pipe, the pump body comprises an air suction cavity, a mixing chamber and a diffusion chamber which are sequentially connected, the working pipe and one end connected with the nozzle and the nozzle are arranged in the air suction cavity, the nozzle is right opposite to the inlet of the mixing chamber, the cut-off part comprises a cut-off valve plate and a cut-off pull rod connected with the cut-off valve plate, a flow passage hole is arranged at the cut-off center of the valve plate, the cut-off pull rod can move, and the cut off and move to drive the cut-off valve plate to move, so that the cut-off valve plate gradually seals the flow channel in the mixing chamber, and the cut-off valve plate is in contact with the outlet of the nozzle to seal the outlet of the nozzle, so that the flow channel of the working pipe is sealed, the flow channel of the working pipe is realized, and the flow channel of the injection pipe is isolated from the flow channel of the outlet pipe.
In some of these embodiments, the shut-off portion further comprises a valve plate recess at the entrance of the mixing chamber, the shut-off valve plate being disposed within the valve plate recess.
In some of these embodiments, the cut-off pull rod includes upper end cut-off plate, lower extreme cut-off plate and set up in the upper end cut-off plate with the valve plate slide between the lower extreme cut-off plate, the valve plate slide with cut-off valve plate links to each other, the valve plate slide is portable, can drive through the removal of valve plate slide the removal of cut-off valve plate.
In some embodiments, the valve plate slide way and the cutoff valve plate are connected by a slide rod, a cam, a swing rod or a crank connecting rod.
In some embodiments, the stop valve rod is further connected with a control unit, and the control unit can control the stop valve rod to move up and down through a manual control button or electromagnetic control.
In some embodiments, a material lifting is arranged between the cut-off valve plate and the pump body or on the surface of the cut-off valve plate.
By adopting the technical scheme, the invention has the following technical effects:
the invention provides a low-temperature hydrogen ejector, which comprises: an inlet adapter, a working pipe, a nozzle, a pump body, an injection pipe, an injection adapter, a corrugated pipe, a cut-off part, an outlet pipe and an outlet adapter, the cut-off part comprises a cut-off valve plate and a cut-off pull rod connected with the cut-off valve plate, the center of the cut-off valve plate is provided with a flow passage hole, the cut-off pull rod can move, the motion of the cut-off valve plate is driven by the motion of the cut-off pull rod, so that the cut-off valve plate gradually seals the flow channel in the mixing chamber, and the cut-off valve plate is brought into contact with the outlet of the nozzle to close the nozzle outlet, so that the flow path of the working pipe is closed, thereby realizing the flow path of the working pipe, isolating the flow path of the injection pipe from the flow path of the outlet pipe and ensuring that in an emergency state, and through external intervention, the shutoff of each flow passage is quickly realized, and the safety and the reliability of the hydrogen ejector are ensured.
In addition, compared with the traditional low-temperature immersed pump and the low-temperature semi-immersed pump, the low-temperature hydrogen ejector provided by the invention has the advantages that the moving parts and the coil-free motor which are fewer can reduce the heat leakage quantity at low temperature, the stability and the reliability in the operation process can be ensured, and the problem of service life reduction caused by the abrasion or the aging of the moving parts at low temperature is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below 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 hydrogen ejector according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of a low-temperature hydrogen injector according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a chopper valve plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a tie bar according to an embodiment of the present invention;
fig. 5 is a schematic control flow diagram of a low-temperature hydrogen ejector according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "horizontal", "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
Referring to fig. 1 and 2, a schematic structural diagram of a low-temperature hydrogen injector according to an embodiment of the present invention includes an inlet adapter 110, a working pipe 120, a nozzle 130, a pump body 140, an injection pipe 150, an injection adapter 160, a corrugated pipe 170, a cut-off portion 180, an outlet pipe 190, and an outlet adapter 210. The connection relationship between the respective components is described in detail below.
The two ends of the working pipe 120 are connected with the inlet adapter 110 and the nozzle 130, the pump body 140 is connected with one end of the injection pipe 150, the other end of the injection pipe 150 is further connected with the injection adapter 160, the pump body 140 is connected with one end of the outlet pipe 190, the other end of the outlet pipe 190 is further connected with the outlet adapter 210, the outlet pipe 190 is further connected with the corrugated pipe 170, and the cut-off part 180 is arranged in the corrugated pipe 170.
The components are welded and the bellows seal and the mechanical end face seal are combined to realize the high-efficiency seal of the ejector and avoid the leakage in the modes of threaded connection and the like; meanwhile, the split welding can also reduce the volume and the cold quantity of the ejector, so that the cold quantity consumed at low temperature is reduced, and the defect that excessive cold quantity is consumed due to factors such as heat leakage and the like in the use process of the low-temperature pump is overcome.
Referring to fig. 2 again, which is a schematic cross-sectional structure view of the low-temperature hydrogen injector according to an embodiment of the present invention, the pump body 140 includes a suction chamber 141, a mixing chamber 142, and a diffusion chamber 142, which are connected in sequence, one end of the working tube 120 connected to the nozzle 130, the nozzle 130 is disposed in the suction chamber 141, the nozzle 130 faces an inlet of the mixing chamber 142, and the cut-off portion 180 includes a cut-off valve plate 181 and a cut-off pull rod 182 connected to the cut-off valve plate 181.
Referring to fig. 3, which is a schematic structural view of a cut-off valve plate according to an embodiment of the present invention, a flow passage hole 183 is formed in the center of the cut-off valve plate 181 to ensure that a flow passage inside a mixing chamber 142 is unblocked under a normal working condition; the cut-off valve plate 181 is further provided with a pull rod hole 184, and the pull rod hole 184 is connected with the cut-off pull rod 182.
In some embodiments, a material lifting is disposed between the cut-off valve plate 181 and the pump body 140 or on the surface of the cut-off valve plate to enhance the sealing effect.
The working mode of the low-temperature hydrogen ejector is as follows:
because the cut-off pull rod 182 is movable, the cut-off pull rod 182 moves to drive the cut-off valve plate 181 to move, so that the cut-off valve plate 181 gradually seals the flow channel in the mixing chamber 142, and the cut-off valve plate 181 is in contact with the outlet of the nozzle 130 to seal the outlet of the nozzle 130, so that the flow channel of the working pipe 120 is sealed, the flow channel of the working pipe 120 is realized, the flow channel of the injection pipe 150 is isolated from the flow channel of the outlet pipe 190, and the flow channel shutoff of each flow channel is rapidly realized through external intervention in an emergency state, and the safety and the reliability of the hydrogen injector are ensured.
Referring again to fig. 2, the intercepting part 180 further includes a valve plate recess 185, the valve plate recess 185 is located at an inlet of the mixing chamber 142, the intercepting valve plate 181 is disposed in the valve plate recess 185, and the intercepting valve plate 181 is movable in the valve plate recess 185.
Referring to fig. 4, which is a schematic structural diagram of a cutoff pull rod according to an embodiment of the present invention, the cutoff pull rod 182 includes an upper end cutoff plate 220, a lower end cutoff plate 230, and a valve plate slide 240 disposed between the upper end cutoff plate 220 and the lower end cutoff plate 230, the valve plate slide 240 is connected to the cutoff valve plate 181, the valve plate slide 240 is movable, and the movement of the cutoff valve plate 181 can be driven by the movement of the valve plate slide 240.
In some embodiments, the valve plate slide way and the cutoff valve plate are connected by a slide rod, a cam, a swing rod or a crank connecting rod.
Referring to fig. 5, a schematic control flow diagram of a low-temperature hydrogen ejector according to an embodiment of the present invention is shown, in which an ejector is used to eject low-pressure hydrogen or liquid hydrogen by using a high-pressure hydrogen source, and the low-pressure hydrogen or liquid hydrogen flows out of an outlet of the ejector through a mixing chamber and a diffusion chamber of the ejector; simultaneously, can realize reciprocating to cutting the valve rod through modes such as manual control button or electromagnetic control at emergency control end, through cut the pull rod and remove the drive cut-off valve plate's removal, so that cut-off valve plate seals gradually the runner in the hybrid chamber, and make cut-off valve plate with the export of nozzle contacts in order to seal touch the nozzle export, makes the flow path of working pipe seals, thereby realizes the flow path of working pipe, draw the flow path of penetrating the pipe with the flow path of outlet pipe is kept apart, guarantees under emergency state, through external intervention, realizes fast that each runner shuts off, guarantees the security and the reliability of hydrogen ejector.
In addition, compared with the traditional low-temperature immersed pump and the low-temperature semi-immersed pump, the low-temperature hydrogen ejector provided by the invention has the advantages that the moving parts and the coil-free motor which are fewer can reduce the heat leakage quantity at low temperature, the stability and the reliability in the operation process can be ensured, and the problem of service life reduction caused by the abrasion or the aging of the moving parts at low temperature is avoided.
The foregoing is considered as illustrative only of the preferred embodiments of the invention, and is presented merely for purposes of illustration and description of the principles of the invention and is not intended to limit the scope of the invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are included in the protection scope of the invention based on the explanation here.
Claims (6)
1. A low temperature hydrogen eductor, comprising: the device comprises an inlet adapter, a working pipe, a nozzle, a pump body, an injection pipe, an injection adapter, a corrugated pipe, a cut-off part, an outlet pipe and an outlet adapter;
the two ends of the working pipe are connected with the inlet adapter and the nozzle, the pump body is connected with one end of the ejector pipe, the other end of the ejector pipe is also connected with the ejector adapter, the pump body is connected with one end of the outlet pipe, the other end of the outlet pipe is also connected with the outlet adapter, the outlet pipe is also connected with the corrugated pipe, the cut-off part is arranged in the corrugated pipe, the pump body comprises an air suction cavity, a mixing chamber and a diffusion chamber which are sequentially connected, the working pipe and one end connected with the nozzle and the nozzle are arranged in the air suction cavity, the nozzle is right opposite to the inlet of the mixing chamber, the cut-off part comprises a cut-off valve plate and a cut-off pull rod connected with the cut-off valve plate, a flow passage hole is arranged at the cut-off center of the valve plate, the cut-off pull rod can move, and the cut off and move to drive the cut-off valve plate to move, so that the cut-off valve plate gradually seals the flow channel in the mixing chamber, and the cut-off valve plate is in contact with the outlet of the nozzle to seal the outlet of the nozzle, so that the flow channel of the working pipe is sealed, the flow channel of the working pipe is realized, and the flow channel of the injection pipe is isolated from the flow channel of the outlet pipe.
2. The cryogenic hydrogen eductor of claim 1 wherein the shutoff portion further includes a valve plate recess at the entrance to the mixing chamber, the shutoff valve plate being disposed in the valve plate recess.
3. The cryogenic hydrogen eductor of claim 2 wherein the shutoff linkage includes an upper shutoff plate, a lower shutoff plate, and a valve plate slide disposed between the upper shutoff plate and the lower shutoff plate, the valve plate slide being connected to the shutoff valve plate, the valve plate slide being movable to move the shutoff valve plate.
4. The cryogenic hydrogen ejector of claim 3 wherein the valve plate slide is connected to the cutoff valve plate by a slide bar or cam or rocker or crank link.
5. The cryogenic hydrogen injector as claimed in claim 1, wherein the cutoff valve stem is further connected to a control unit, and the control unit can control the cutoff valve stem up and down by manual control of a button or electromagnetic control.
6. The cryogenic hydrogen eductor of claim 1 further characterized in that a material pick-up is disposed between the shutoff valve plate and the pump body or on a surface of the shutoff valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011131701.0A CN114382732B (en) | 2020-10-21 | 2020-10-21 | Low-temperature hydrogen ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011131701.0A CN114382732B (en) | 2020-10-21 | 2020-10-21 | Low-temperature hydrogen ejector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114382732A true CN114382732A (en) | 2022-04-22 |
| CN114382732B CN114382732B (en) | 2023-10-20 |
Family
ID=81192653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011131701.0A Active CN114382732B (en) | 2020-10-21 | 2020-10-21 | Low-temperature hydrogen ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114382732B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201705741U (en) * | 2010-05-28 | 2011-01-12 | 杜战奇 | Sprayer capable of adjusting the distance between a nozzle and a mixing chamber inlet and the nozzle critical section |
| JP2011012636A (en) * | 2009-07-03 | 2011-01-20 | Honda Motor Co Ltd | Ejector |
| CN102654145A (en) * | 2011-08-31 | 2012-09-05 | 韩铁夫 | Jet pump |
| CN104056750A (en) * | 2014-07-11 | 2014-09-24 | 山东科技大学 | Ejector based on cavatition of ultrasonic waves |
| CN105889143A (en) * | 2015-01-16 | 2016-08-24 | 杭州恒勋能源科技有限公司 | Adjustable steam jet heat pump |
| CN206309666U (en) * | 2016-12-13 | 2017-07-07 | 四川航空工业川西机器有限责任公司 | Multiple jetses jet pump |
| CN108194134A (en) * | 2017-12-15 | 2018-06-22 | 中铁十八局集团有限公司 | Remodeling ejector and the deep shaft construction no bottom valve method using the ejector |
| CN109882453A (en) * | 2019-03-01 | 2019-06-14 | 一汽解放汽车有限公司 | The injector of variable cross section |
-
2020
- 2020-10-21 CN CN202011131701.0A patent/CN114382732B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011012636A (en) * | 2009-07-03 | 2011-01-20 | Honda Motor Co Ltd | Ejector |
| CN201705741U (en) * | 2010-05-28 | 2011-01-12 | 杜战奇 | Sprayer capable of adjusting the distance between a nozzle and a mixing chamber inlet and the nozzle critical section |
| CN102654145A (en) * | 2011-08-31 | 2012-09-05 | 韩铁夫 | Jet pump |
| CN104056750A (en) * | 2014-07-11 | 2014-09-24 | 山东科技大学 | Ejector based on cavatition of ultrasonic waves |
| CN105889143A (en) * | 2015-01-16 | 2016-08-24 | 杭州恒勋能源科技有限公司 | Adjustable steam jet heat pump |
| CN206309666U (en) * | 2016-12-13 | 2017-07-07 | 四川航空工业川西机器有限责任公司 | Multiple jetses jet pump |
| CN108194134A (en) * | 2017-12-15 | 2018-06-22 | 中铁十八局集团有限公司 | Remodeling ejector and the deep shaft construction no bottom valve method using the ejector |
| CN109882453A (en) * | 2019-03-01 | 2019-06-14 | 一汽解放汽车有限公司 | The injector of variable cross section |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114382732B (en) | 2023-10-20 |
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