CN115846074A - Adjustable injection device and method - Google Patents
Adjustable injection device and method Download PDFInfo
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- CN115846074A CN115846074A CN202211324771.7A CN202211324771A CN115846074A CN 115846074 A CN115846074 A CN 115846074A CN 202211324771 A CN202211324771 A CN 202211324771A CN 115846074 A CN115846074 A CN 115846074A
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- 238000002347 injection Methods 0.000 title claims abstract description 31
- 239000007924 injection Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000012530 fluid Substances 0.000 claims description 51
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000004323 axial length Effects 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 6
- 239000011162 core material Substances 0.000 description 63
- 230000033228 biological regulation Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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Abstract
The invention provides an adjustable injection device and method, relates to the field of injection mixers, and aims to solve the problem of low efficiency in the conventional process of adjusting the internal sectional area of an injector.
Description
Technical Field
The invention relates to the field of jet mixers, in particular to an adjustable jet device and method.
Background
The ejector is a device which utilizes high-pressure fluid to increase the pressure of low-pressure fluid so as to obtain a stream of fluid with a centered pressure, and the application is very wide. When the compressor is applied to the injection type system, the pressure ratio of the compressor can be reduced, the energy input can be reduced, and the reliability of the system can be improved. The main losses of the ejector are the speed difference of the working fluid and the ejector fluid before mixing and the shock wave phenomenon in the mixing process.
An adjustable ejector is disclosed in the Chinese patent (publication number: CN 101412011A), when the flow of a refrigerant entering the ejector is changed, the sectional area of the throat part of the nozzle and the sectional area of the conical inlet of a mixing section are adjusted by a needle valve, so that the efficiency of the nozzle can be improved, the phenomenon of shock wave or backflow of airflow in the mixing section is avoided, and the working efficiency of the ejector is improved. However, the receiving chamber of the adjustable ejector is of a straight pipe type structure, and the speed difference before the working fluid and the injection fluid are mixed is large. Chinese patent (publication No. CN 105855084B) discloses an adjustable ejector, which can adjust the flow area of each throat in the ejector, so that the throats are linear channels, thereby improving the working efficiency of the ejector, but in the adjusting process, each throat is independently adjusted, although the adjustable range is increased, the number and steps of adjustment are also increased, thereby resulting in low adjusting efficiency, and being not applicable to a scene where the injection ratio is rapidly adjusted.
Disclosure of Invention
The invention aims to provide an adjustable injection device and an adjustable injection method aiming at the defects in the prior art, wherein an adjusting core is arranged in the injection device and is distributed in a power nozzle and a mixing chamber, so that the cross section of a channel in the power nozzle and the cross section of a channel in the mixing chamber can be adjusted simultaneously when the position of the adjusting core is changed, the adjusting steps are reduced to improve the adjusting speed, the requirement of quickly adjusting the injection ratio is met, and the operation efficiency is improved.
The invention provides an adjustable spraying device, which adopts the following scheme:
the device comprises a receiving chamber, a mixing chamber and a diffusion chamber which are sequentially communicated along the axial direction, wherein a first inlet is connected to one axial end of the receiving chamber through a power nozzle, and a second inlet is connected to the receiving chamber; the adjusting core is positioned in the mixing chamber, one end of the adjusting core penetrates through the receiving chamber and then extends into the power nozzle, a first channel is formed between the adjusting core and the inner wall of the power nozzle, and a second channel is formed between the adjusting core and the inner wall of the mixing chamber; the adjustment core changes the radial sectional areas of the first passage and the second passage by moving in the axial direction.
Further, the section of the adjusting core in the power nozzle is a first conical section, and the first conical section is arranged coaxially with the power nozzle, so that the radial section of the first channel is annular.
Further, the first conical section and a generatrix of the inner wall of the power nozzle at the same annular position are arranged in parallel, and the radial thickness of the first channel is equal in the axial direction.
Further, the section of the adjusting core in the mixing chamber is a second conical section, and the second conical section is arranged coaxially with the mixing chamber, so that the radial section of the second channel is annular.
Furthermore, the second conical section and a generating line of the inner wall of the mixing chamber at the same annular position form an included angle, and the radial sectional areas of the second channels are equal in the axial direction.
Further, the section of the adjusting core, which is located in the receiving chamber, is a straight section, the straight section and the receiving chamber are arranged coaxially, the second inlet is arranged annularly along the receiving chamber, and the fluid flowing direction in the second inlet forms an acute angle with the fluid flowing direction in the receiving chamber.
Furthermore, the adjusting core is connected with an adjusting piece which drives the adjusting core to reciprocate along the axial direction, the adjusting piece extends out of the first inlet, and the axial length of the second channel is changed through the axial movement of the adjusting core.
Furthermore, one end of the adjusting core, which is far away from the receiving chamber, extends into the diffuser chamber and forms a third conical section, a third channel is formed between the third conical section and the inner wall of the diffuser chamber, and the radial sectional area of the third channel gradually increases along the direction in which the axial line is far away from the mixing chamber.
A second object of the invention is to provide a working method with an adjustable spraying device, comprising:
the first inlet is connected with high-pressure fluid, the second inlet is connected with low-pressure fluid, and the high-pressure fluid passes through the power nozzle and then is input into the mixing chamber to be converged with the low-pressure fluid;
the merged low-pressure fluid and the high-pressure fluid are jointly input into a mixing chamber for mixing, and the mixed fluid flows out through a diffusion chamber;
the axial position of the adjusting core is adjusted, the radial sectional areas of the first channel and the second channel are changed, and the injection ratio is adjusted.
Further, after the axial position of the adjusting core is adjusted, the ratio of the cross-sectional areas of the first channel and the second channel is changed, and the axial length of the second channel is changed accordingly.
Compared with the prior art, the invention has the advantages and positive effects that:
(1) The problem that efficiency is lower when adjusting the internal section area of ejector at present is through setting up the regulation core in that injection apparatus is inside, and the regulation core all has the distribution in power nozzle, mixing chamber, can adjust the sectional area of power nozzle internal passage and the sectional area of mixing chamber internal passage simultaneously when changing the regulation core position, reduces the regulation step in order to improve governing speed, satisfies the demand that the ratio was drawn in the quick adjustment to improve operating efficiency.
(2) The adjusting core is of an integral structure, different sections of the adjusting core are matched with different positions to form a plurality of channels, when the adjusting core moves, the radial sectional areas of the positions of the channels are adjusted simultaneously, the area ratio is controlled, the problem that the injection ratio is reduced due to the fact that the injection capacity is reduced when the inlet and outlet working condition changes is solved, and the injection ratio is guaranteed.
(3) The power nozzle inner wall of toper section complex, the mixing chamber inner wall are the toper to make first toper section and the same hoop bus-bar parallel arrangement of position of power nozzle inner wall, first passageway forms the horn-shaped structure that radial thickness equals, and second toper section is the contained angle setting with the same hoop bus-bar of position of mixing chamber inner wall, realizes that thickness is different, the mixing chamber that the sectional area equals, flows the in-process and spreads gradually in the second passageway at the fluid, guarantees the injection ability to the fluid.
(4) The second channel formed by the second conical section and the mixing chamber is also conical, when the position of the adjusting core is changed, the axial length of the second channel is changed, the areas of the first channel and the second channel in the injection device and the length inside the mixing chamber are adjusted simultaneously, more working conditions can be adapted, the injection device can reach a proper injection ratio under different required flow conditions, and therefore the operation efficiency of the injection device is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of an adjustable spraying device in embodiments 1 and 2 of the present invention.
FIG. 2 is a schematic view showing the position of the adjustment core changed in examples 1 and 2 of the present invention.
FIG. 3 is a schematic view showing the position of the adjustment core changed in examples 1 and 2 of the present invention.
Wherein, 1-a first inlet, 2-a second inlet, 3-a regulating member, 4-a regulating core, 5-a power nozzle, 6-a receiving chamber, 7-a mixing chamber and 8-a pressure-expanding chamber.
Detailed Description
Example 1
In one exemplary embodiment of the present invention, an adjustable spray device is provided, as shown in fig. 1-3.
The fluid influences the state of ejector end output at the inside flow process of ejector, at present through the flow area who adjusts each throat in the ejector, make the throat be the linear type passageway, improve ejector work efficiency, but need adjust each throat alone in accommodation process, although increased adjustable range, but also increased the quantity and the step of adjusting, lead to the regulation efficiency lower, and simultaneously, its adjustment parameter is single type, can't adjust to the length of passageway, can't be applicable to drawing the scene of penetrating to carrying out quick adjustment.
Based on this, provide an injection apparatus with adjustable in this embodiment, can adjust the passage sectional area of 5 throats of power nozzle and 7 departments of mixing chamber simultaneously, and then regulate and control area ratio between them, when having solved the exit operating mode condition and changing, draw the ability decline, draw the problem that the injection ratio reduces.
The adjustable injection device of the present embodiment will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the adjustable injector is provided with a base body and an adjusting core 4, wherein a receiving chamber 6, a mixing chamber 7 and a diffusion chamber 8 which are sequentially communicated along the axial direction are formed in the base body.
Wherein, the receiving chamber 6 can take a plurality of fluids, so that the plurality of fluids are combined in the receiving chamber 6, at least two inlets are provided, and different inlets can be butted with different fluid sources, such as: the first inlet 1 is connected to a first fluid source and the second inlet 2 is connected to a second fluid source, the first fluid source and the second fluid source being capable of providing jets of different pressures, such that the jets of different pressures merge within the receiving chamber 6.
The mixing chamber 7 receives the fluid merged in the receiving chamber 6, and the fluid is sufficiently mixed in the mixing chamber 7. The pressure expansion chamber 8 performs pressure expansion output on the mixed fluid.
The regulating core 4 is arranged in the base body and divided into a plurality of segments, wherein a part of the segments are positioned in the receiving chamber 6, a part of the segments are positioned in the mixing chamber 7 and a part of the segments are positioned in the pressure expansion chamber 8, the regulating core 4 is of a unitary structure, and when the regulating core 4 changes position, as shown in fig. 2 and 3, each segment simultaneously changes position relative to the base body in which the segment is positioned.
The receiving chamber 6 is connected with a fluid source through a first inlet 1 and a second inlet 2, in the embodiment, the first inlet 1 is connected with one axial end of the receiving chamber 6 through a power nozzle 5, the second inlet 2 is connected with the receiving chamber 6 through the receiving chamber 6 ring to the side surface, and the directions of fluid input by the first inlet 1 and the second inlet 2 are crossed.
Part of the segments of the adjusting core 4 are positioned in the mixing chamber 7, one end of the adjusting core 4 penetrates through the receiving chamber 6 and then extends into the power nozzle 5, and a first channel is formed between the adjusting core 4 and the inner wall of the power nozzle 5, so that fluid input from the first inlet 1 can be accelerated to form jet under the action of the first channel; a second channel is formed between the adjusting core 4 and the inner wall of the mixing chamber 7, so that input jet flows of the first inlet 1 and the second inlet 2 are merged and then mixed, the second channel is a thin-wall channel which is thinner relative to the receiving chamber 6, and the output pressure of the merged fluid of the receiving chamber 6 is improved.
The adjusting core 4 is of an integrated structure, a first channel is formed between partial sections matched with the inner wall of the power nozzle 5, a second channel is formed between partial sections matched with the inner wall of the mixing chamber 7, and when the position of the adjusting core 4 is changed, the first channel and the second channel are changed simultaneously.
Specifically, the adjusting core 4 is a core material structure including a plurality of segments, the axial direction is the same as the axial direction of the base body, and the radial sectional areas of the first passage and the second passage are changed when the adjusting core 4 moves in the axial direction. The variation of the radial sectional area is achieved by varying the gap between the outer peripheral wall of the regulating core 4 and the inner wall of the motive nozzle 5.
One segment of the regulating core 4 is a first conical segment located inside the power nozzle 5, and the first conical segment is coaxially arranged with the power nozzle 5, so that the radial section of the first channel is annular; the other section of the adjusting core 4 is a second conical section located in the mixing chamber 7, which is arranged coaxially with the mixing chamber 7, so that the radial cross section of the second channel is annular.
Between the first conical section and the second conical section, the section of the adjusting core 4 located in the receiving chamber 6 is a straight section, the straight section is arranged coaxially with the receiving chamber 6, the second inlet 2 is arranged annularly along the receiving chamber 6, and the fluid flow direction in the second inlet 2 forms an acute angle with the fluid flow direction in the receiving chamber 6.
The other section of the adjusting core 4 is a third conical section formed by extending the end far away from the receiving chamber 6 into the pressure expansion chamber 8, a third channel is formed between the third conical section and the inner wall of the pressure expansion chamber 8, and the radial sectional area of the third channel is gradually increased along the direction of the axial line far away from the mixing chamber 7.
As shown in fig. 1 and 2, the adjusting core 4 is divided into four segments in the axial direction, i.e., a first conical segment, a straight segment, a second conical segment, and a third conical segment. The first conical section and a bus of the inner wall of the power nozzle 5 at the same annular position are arranged in parallel, and the radial thickness of the first channel is equal in the axial direction; the second conical section and a bus of the inner wall of the mixing chamber 7 at the same annular position form an included angle, the radial sectional areas of the second channel are equal in the axial direction, and the radial thickness of the second channel is gradually changed.
The power nozzle 5 is connected with high-pressure flow through the first inlet 1, and the outlet of the power nozzle 5 and the second inlet 2 are communicated with the receiving chamber 6; the inner wall of the first inlet 1 is of a streamline structure, and compared with the traditional linear wall, the streamline structure reduces the flow resistance, reduces the energy loss in the flow process, and improves the operation efficiency of the injection device; the motive nozzle 5, the receiving chamber 6, the mixing chamber 7, and the diffuser chamber 8 are sequentially communicated, and have a cylindrical structure having the same axis.
The power nozzle 5 is a convergent-divergent nozzle and is arranged in front of the receiving chamber 6, the adjusting core 4 is arranged at the axial line of the power nozzle 5, the receiving chamber 6, the mixing chamber 7 and the pressure-expanding chamber 8, the adjusting core 4 can move along the axial direction under the driving of an electric device, so that the radial sectional area of an annular space formed by the throat part of the power nozzle 5 and the outer wall of the adjusting core 4 is changed, the radial sectional area of an annular space formed by the inner wall of the mixing chamber 7 and the outer wall of the adjusting core 4 is changed, the radial sectional area of the position of the mixing chamber 7 is changed, and meanwhile, the length of a relative area between the inner wall of the mixing chamber 7 and the outer wall of the adjusting core 4 is also changed, so that the length of a second channel formed by the position of the mixing chamber 7 can be changed.
The radial dimension of the motive nozzle 5 changes gradually in the axial direction, and the first conical section of the adjusting core 4 corresponding thereto is arranged at the same angle with the inner wall of the motive nozzle 5. Meanwhile, the mixing chamber 7 is not designed to be a cylindrical structure with the same sectional area but a circular truncated cone-shaped structure with the different sectional area, the radial dimension of the inner wall of the mixing chamber 7 is gradually changed along the axial direction, and the second conical section of the adjusting core 4 corresponding to the radial dimension is arranged at different angles with the inner wall of the mixing chamber 7, so that a second channel formed between the two channels is in a cylindrical structure with the same sectional area and different thicknesses.
With reference to fig. 1 and 3, the above-mentioned structural arrangement enables the thickness of the first channel formed between the power nozzle 5 and the first conical section of the adjusting core 4 to be uniformly distributed, and the thickness of the first channel inside the power nozzle 5 is unchanged. The radial sectional area of the second passage between the mixing chamber 7 and the second conical section is always kept the same condition from front to back, and the mixing chamber 7 with the same sectional area is realized.
The cavity inside the diffusion chamber is designed into a cylindrical structure, and forms an area with the inner inverted triangular cone-shaped third cone section, the area is continuously enlarged in sectional area, and the area and the traditional expansion nozzle type diffusion chamber 8 can play the same role.
As shown in fig. 3, the adjusting core 4 is connected with an adjusting piece 3 driving the adjusting core to reciprocate along the axial direction, the adjusting piece 3 extends out of the first inlet 1, and the axial length of the second channel is changed by the movement of the adjusting core 4 along the axial direction. The adjusting member 3 in this embodiment may adopt linear driving elements such as an electric push rod and a telescopic rod to drive the adjusting core 4 to move axially.
Taking the position shown in fig. 1 as an example, the motive nozzle 5 is located on the left side of the receiving chamber 6, and the pressure expansion chamber 8 is located on the right side of the mixing chamber 7. During the leftward movement of the regulating core 4, the sectional area of the throat part of the power nozzle 5 is reduced, the radial sectional area of the second passage inside the mixing chamber 7 is reduced, and the length of the mixing chamber 7 is reduced; on the contrary, during the movement of the regulating core 4 to the right, the section area of the throat of the motive nozzle 5 increases, the radial section area of the second passage inside the mixing chamber 7 increases, and the length of the mixing chamber 7 increases.
Therefore, during the axial movement of the adjusting core 4, on the one hand, the area ratio of the internal passage can be changed, and on the other hand, the length of the second passage inside the mixing chamber 7 can be changed, so that the adjusting core can be better adapted to different working conditions. By adjusting the area ratio of the channels and the length of the mixing chamber 7, the adjustable injection device can adapt to more working conditions, so that the adjustable injection device can achieve a proper injection ratio under different flow conditions, and the operation efficiency of the injector is improved; . Especially for a small-sized ejector for supercritical carbon dioxide circulating refrigeration, the adjustable ejector device can enable the system to operate at higher efficiency under different refrigeration capacity requirements.
Example 2
In another exemplary embodiment of the present invention, a method of operating an adjustable spray device is provided, as shown in fig. 1-3.
Referring to fig. 1-3, the working method comprises:
the first inlet 1 is connected with high-pressure fluid, the second inlet 2 is connected with low-pressure fluid, and the high-pressure fluid passes through the power nozzle 5 and then is input into the mixing chamber 7 to be merged with the low-pressure fluid;
the merged low-pressure fluid and high-pressure fluid are input into a mixing chamber 7 together for mixing, and the mixed fluid flows out through a pressure expansion chamber 8;
the axial position of the adjusting core 4 is adjusted, the radial sectional areas of the first channel and the second channel are changed, and the injection ratio is adjusted; after the axial position of the adjusting core 4 is adjusted, the ratio of the sectional areas of the first channel and the second channel is changed, and the axial length of the second channel is changed accordingly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An adjustable injection device is characterized by comprising a receiving chamber, a mixing chamber and a diffusion chamber which are sequentially communicated along the axial direction, wherein a first inlet is connected to one axial end of the receiving chamber through a power nozzle, and a second inlet is connected to the receiving chamber; the adjusting core is positioned in the mixing chamber, one end of the adjusting core penetrates through the receiving chamber and then extends into the power nozzle, a first channel is formed between the adjusting core and the inner wall of the power nozzle, and a second channel is formed between the adjusting core and the inner wall of the mixing chamber; the adjustment core changes the radial sectional areas of the first passage and the second passage by moving in the axial direction.
2. The adjustable jet apparatus as claimed in claim 1, wherein the section of the adjustment core within the power nozzle is a first conical section arranged coaxially with the power nozzle such that the radial cross-section of the first passage is annular.
3. The adjustable spray device of claim 2, wherein the first conical section is disposed parallel to a generatrix of the inner wall of the motive nozzle at a same circumferential position, and the radial thickness of the first passage is equal in an axial direction.
4. The adjustable jet apparatus as claimed in claim 1, wherein the section of the regulating core located in the mixing chamber is a second conical section, and the second conical section is arranged coaxially with the mixing chamber, so that the radial cross section of the second channel is annular.
5. The adjustable spraying device according to claim 4, wherein the second conical section is arranged at an angle to a generatrix of the inner wall of the mixing chamber at the same circumferential position, and the radial cross-sectional area of the second passage is equal along the axial direction.
6. The adjustable jet apparatus as claimed in claim 1, wherein the section of the regulating core located in the receiving chamber is a straight section, the straight section is coaxially arranged with the receiving chamber, the second inlet is annularly arranged along the receiving chamber, and the fluid flow direction in the second inlet is at an acute angle to the fluid flow direction in the receiving chamber.
7. The adjustable jet apparatus as claimed in claim 1, wherein the adjusting core is connected to an adjusting member for reciprocating the adjusting core in the axial direction, the adjusting member extends out of the first inlet, and the axial length of the second channel is changed by the movement of the adjusting core in the axial direction.
8. The adjustable spray device according to claim 1, wherein the end of the regulating core away from the receiving chamber extends into the diffuser chamber and forms a third conical section, a third channel is formed between the third conical section and the inner wall of the diffuser chamber, and the radial cross-sectional area of the third channel gradually increases along the direction of the axis away from the mixing chamber.
9. A method for operating an adjustable spray device as claimed in any one of claims 1 to 8, comprising:
the first inlet is connected with high-pressure fluid, the second inlet is connected with low-pressure fluid, and the high-pressure fluid passes through the power nozzle and then is input into the mixing chamber to be converged with the low-pressure fluid;
the merged low-pressure fluid and the high-pressure fluid are jointly input into a mixing chamber for mixing, and the mixed fluid flows out through a diffusion chamber;
the axial position of the adjusting core is adjusted, the radial sectional areas of the first channel and the second channel are changed, and the injection ratio is adjusted.
10. The operating method of an adjustable jet apparatus as claimed in claim 9, wherein the axial length of the second passage is changed by changing the ratio of the cross-sectional areas of the first passage and the second passage after adjusting the axial position of the adjusting core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211324771.7A CN115846074A (en) | 2022-10-27 | 2022-10-27 | Adjustable injection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211324771.7A CN115846074A (en) | 2022-10-27 | 2022-10-27 | Adjustable injection device and method |
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| Publication Number | Publication Date |
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| CN115846074A true CN115846074A (en) | 2023-03-28 |
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| CN202211324771.7A Pending CN115846074A (en) | 2022-10-27 | 2022-10-27 | Adjustable injection device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100801658B1 (en) * | 2006-09-19 | 2008-02-05 | 한국에너지기술연구원 | Two way variable nozzle type ejector for fuel cell |
| CN101412011A (en) * | 2008-11-07 | 2009-04-22 | 浙江大学 | Adjustable spraying apparatus |
| CN105311977A (en) * | 2014-08-22 | 2016-02-10 | 青岛高远热能动力设备有限公司 | Linkage-adjustment ejector |
| CN106423608A (en) * | 2016-10-26 | 2017-02-22 | 山东大学 | Ejector with spray nozzle position adjustable and device |
| CN108672123A (en) * | 2018-07-06 | 2018-10-19 | 西安交通大学 | A kind of adjustable injector of mixing chamber throat opening area |
| CN112058110A (en) * | 2020-09-28 | 2020-12-11 | 青岛高远热能动力设备有限公司 | Double-adjusting ejector |
| CN112780615A (en) * | 2021-03-04 | 2021-05-11 | 郭孝国 | Supersonic air ejector |
-
2022
- 2022-10-27 CN CN202211324771.7A patent/CN115846074A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100801658B1 (en) * | 2006-09-19 | 2008-02-05 | 한국에너지기술연구원 | Two way variable nozzle type ejector for fuel cell |
| CN101412011A (en) * | 2008-11-07 | 2009-04-22 | 浙江大学 | Adjustable spraying apparatus |
| CN105311977A (en) * | 2014-08-22 | 2016-02-10 | 青岛高远热能动力设备有限公司 | Linkage-adjustment ejector |
| CN106423608A (en) * | 2016-10-26 | 2017-02-22 | 山东大学 | Ejector with spray nozzle position adjustable and device |
| CN108672123A (en) * | 2018-07-06 | 2018-10-19 | 西安交通大学 | A kind of adjustable injector of mixing chamber throat opening area |
| CN112058110A (en) * | 2020-09-28 | 2020-12-11 | 青岛高远热能动力设备有限公司 | Double-adjusting ejector |
| CN112780615A (en) * | 2021-03-04 | 2021-05-11 | 郭孝国 | Supersonic air ejector |
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