CN113203215A - Heat recovery or work recovery system, ejector therefor and fluid mixing method - Google Patents

Heat recovery or work recovery system, ejector therefor and fluid mixing method Download PDF

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Publication number
CN113203215A
CN113203215A CN202010078559.1A CN202010078559A CN113203215A CN 113203215 A CN113203215 A CN 113203215A CN 202010078559 A CN202010078559 A CN 202010078559A CN 113203215 A CN113203215 A CN 113203215A
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CN
China
Prior art keywords
pressure fluid
high pressure
wall
fluid nozzle
ejector
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.)
Pending
Application number
CN202010078559.1A
Other languages
Chinese (zh)
Inventor
张薇
P.韦尔马
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carrier Corp
Original Assignee
Carrier Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carrier Corp filed Critical Carrier Corp
Priority to CN202010078559.1A priority Critical patent/CN113203215A/en
Priority to EP20214609.8A priority patent/EP3858472B1/en
Publication of CN113203215A publication Critical patent/CN113203215A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
    • 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
    • F04F5/463—Arrangements of nozzles with provisions for mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • 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
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/001—Ejectors not being used as compression device
    • F25B2341/0012—Ejectors with the cooled primary flow at high pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/23—Separators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The invention provides an ejector for a heat recovery or work recovery system, a heat recovery or work recovery system and a method of directing a fluid therein. Wherein, the sprayer includes: a high pressure fluid passage, the high pressure fluid passage comprising: a high pressure fluid inlet and a high pressure fluid nozzle; a suction fluid passage including a suction fluid inlet and a suction chamber surrounding the high pressure fluid nozzle; a mixing chamber in fluid communication with the high pressure fluid passage and the suction fluid passage, respectively; and a diffusion chamber downstream of the mixing chamber; wherein a front end of an outer wall of the high pressure fluid nozzle has an arc-shaped rounded portion. The ejector according to the embodiment of the present invention has improved efficiency.

Description

Heat recovery or work recovery system, ejector therefor and fluid mixing method
Technical Field
The present invention relates to the field of heat recovery (heat recovery) or work recovery (work recovery) systems, and more particularly, to an ejector for a heat recovery or work recovery system, and a method of mixing fluids in a heat recovery or work recovery system.
Background
Commercial heat recovery or work recovery systems, particularly those requiring large pressure differentials, use ejectors to improve efficiency. The ejector pressurizes the suction fluid, such as with a high pressure fluid, and provides the mixed fluid to the compressor inlet, thereby increasing the pressure of the compressor inlet fluid, thereby reducing the need for compressor capacity and increasing the efficiency of the system.
The ejector typically includes a high pressure fluid nozzle to convert the high pressure fluid into a high momentum fluid, with the suction fluid being drawn in with the high momentum fluid and mixed with the high momentum fluid in a mixing chamber, then diffused in a diffusion chamber to increase the pressure of the fluid and then supplied to, for example, a compressor. The formation of vortices in the ejector, for example, results in a loss of fluid energy, reducing the ejector's efficiency.
Disclosure of Invention
It is an object of the present invention to solve or at least alleviate problems in the prior art.
In one aspect, there is provided an ejector for a heat recovery or work recovery system, the ejector comprising:
a high pressure fluid passage, the high pressure fluid passage comprising: a high pressure fluid inlet and a high pressure fluid nozzle;
a suction fluid passage including a suction fluid inlet and a suction chamber surrounding the high pressure fluid nozzle;
a mixing chamber in fluid communication with the high pressure fluid passage and the suction fluid passage, respectively; and
a diffusion chamber downstream of the mixing chamber;
wherein a front end of an outer wall of the high pressure fluid nozzle has an arc-shaped rounded portion.
Optionally, in an embodiment of the ejector for a heat recovery or work recovery system, the outer wall of the high pressure fluid nozzle has a tapered section at a front side, the arc-shaped rounded portion starting at 75% to 98% of a total length of the tapered section of the outer wall of the high pressure fluid nozzle and ending up to 100% of the total length of the tapered section of the outer wall.
Optionally, in an embodiment of the ejector for a heat recovery or work recovery system, the forward-most thickness of the outer wall of the high pressure fluid nozzle is less than 1 mm.
Optionally, in an embodiment of the ejector for a heat recovery or work recovery system, the outer wall of the high pressure fluid nozzle comprises: the installation department, the concave arc section of installation department front side with concave arc section front side the toper section, arc radius part is located the foremost side of toper section, high-pressure fluid nozzle's inside includes convergent section, throat, divergent section and high-pressure fluid export in proper order.
Alternatively, in an embodiment of the ejector for a heat recovery or work recovery system, the arc-shaped rounding portion of the front end of the high-pressure fluid nozzle is formed by a post-cutting rounding process, for example by laser cutting or mechanical grinding.
In another aspect, there is also provided a heat recovery or work recovery system comprising an ejector according to various embodiments.
In another aspect, there is also provided a method of mixing fluids, the method comprising:
passing a first fluid through a high pressure fluid nozzle in a high pressure fluid passageway;
causing a second fluid to be drawn in by a suction fluid passage comprising a suction chamber surrounding the high pressure fluid nozzle by means of kinetic energy of the first fluid;
mixing the first fluid and the second fluid within the mixing chamber; and
diffusing the mixed fluid in the diffusion chamber;
wherein the method further comprises forming a leading end of the outer wall of the high pressure fluid nozzle with an arcuately rounded portion to reduce flow energy loss of the second fluid thereat.
Optionally, the method includes forming the arcuate radius portion of the front end of the high pressure fluid nozzle by a post-cut radius process, such as by laser cutting or mechanical grinding.
Optionally, the outer wall of the high pressure fluid nozzle has a tapered section at a front side, the method comprising: starting the arc rounding portion from 75% to 98% of the total length of the conical section of the outer wall of the high-pressure fluid nozzle and ending up to 100% of the total length of the conical section of the outer wall.
Optionally, the method comprises forming a forwardmost side of an outer wall of the high pressure fluid nozzle to be less than 1mm thick.
The apparatus and method according to embodiments of the present invention may improve the efficiency of the ejector and the system to which it is applied.
Drawings
The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are for illustrative purposes only and are not intended to constitute a limitation on the scope of the present invention. Moreover, in the drawings, like numerals are used to indicate like parts, and in which:
FIG. 1 shows a schematic diagram of a work recovery system according to an embodiment of the present invention;
FIG. 2 shows a schematic structural diagram of an injector according to an embodiment of the invention;
FIG. 3 shows a perspective view of an injector nozzle;
FIG. 4 shows a cross-sectional view of an injector nozzle;
FIG. 5 illustrates a cross-sectional view of an injector nozzle according to an embodiment; and
fig. 6 shows a schematic representation of a flow simulation of two injector nozzles.
Detailed Description
A work recovery system employing an ejector according to an embodiment of the present invention will be described with reference to fig. 1, for example, as it may be a refrigeration apparatus. The work recovery system may include: the outlet of the compressor 83 is connected with the inlet of the condenser 82 at the downstream of the compressor 83, and the outlet of the condenser 82 is connected with the high-pressure fluid inlet 11 of the ejector 80. On the other hand, the fluid outlet 43 of the ejector 80 is connected to the separator 84. The fluid exiting the fluid outlet 43 of the ejector 80 is separated in a separator, wherein the gaseous phase is returned to the inlet of the compressor 83 and the liquid phase passes through the valve 85 and the evaporator 86 before reaching the suction fluid inlet 21 of the ejector 80. In the illustrated embodiment, the ejector 80 is used in a work recovery system as shown in FIG. 1, and in alternative embodiments, the ejector 80 may also be used in other types of more complex work recovery systems, and further, the ejector 80 may also be used in heat recovery systems, such as heat recovery systems including generators. In the illustrated embodiment, the work recovery system includes only one ejector, and in alternative embodiments, the system may include a plurality of ejectors. Thus, the ejector according to various embodiments may be applied in various types of heat recovery or work recovery systems.
With continued reference to FIG. 2, a cross-sectional view of the injector is shown. The ejector includes: a high-pressure fluid passage 1, the high-pressure fluid passage 1 including: a high-pressure fluid inlet 11 and a high-pressure fluid nozzle 12; a suction fluid passage 2, the suction fluid passage 2 including a suction fluid inlet 21 and a suction chamber 22 surrounding the high-pressure fluid nozzle 12; a mixing chamber 3 in fluid communication with the high pressure fluid channel 1 and the suction fluid channel 2, respectively; and a diffusion chamber 4 downstream of the mixing chamber 3. In the illustrated embodiment, the high-pressure fluid outlet of the high-pressure fluid nozzle 12 in the high-pressure fluid channel 1 is aligned with the mixing chamber 3, while the suction chamber 22 has a tapering transition section 23 at the connection with the mixing chamber. In the illustrated embodiment, the mixing chamber 3 has a substantially uniform cross-sectional area, while the diffusion chamber 4 has a gradually increasing cross-sectional area. The ejector generally operates on the principle that a high-pressure fluid is converted into a high-momentum fluid while passing through a high-pressure fluid nozzle, and an intake fluid is sucked with the high-momentum fluid and mixed with the high-momentum fluid in a mixing chamber, and then diffused in a diffusion chamber to restore the pressure of the fluid and then supplied to a device such as a compressor.
With continued reference to fig. 3, a perspective view of the high pressure fluid nozzle is shown. The high-pressure fluid nozzle 12 may, for example, include: the mounting portion 121 for fixing into the injector is, for example, cylindrical and has a catch groove, the mounting portion 121 has a concave arc section 122 on the front side and a tapered section 123 on the front side of the concave arc section 122, and the tapered section 123 has an arc-shaped rounded portion 129 at the foremost side 124 (see fig. 5).
With continued reference to FIG. 4, a cross-sectional view of the high pressure fluid nozzle is shown. The interior of the high pressure fluid nozzle may include a convergent section 125, a throat 126A diffuser section 127 and a high pressure fluid outlet 128. With the high pressure fluid outlet 128 being radially inward of the forwardmost side 124 of the conical section 123. As shown in fig. 4, the foremost side 124 of the conventional nozzle is formed with an obtuse-angled portion by cutting, which will cause a vortex to be generated when the suction fluid passes through, thereby causing energy loss of the fluid. Furthermore, the wall thickness T at the forwardmost side 124 of the high-pressure fluid nozzle formed by cutting is typically greater than 1 mm. With continued reference to fig. 5, a high pressure fluid nozzle is shown according to an embodiment of the present invention having an arcuate rounded portion 129 at the forwardmost side 124, i.e. a portion 130 of the high pressure fluid nozzle at the forwardmost side of the forwardmost side 124 is removed such that a rounded transition is formed there without an obtuse angle. In some embodiments, the arcuate radiused portion 129 may be formed by a post-cut rounding process, such as by laser cutting or mechanical grinding. In some embodiments, the forward-most thickness of the outer wall of the high-pressure fluid nozzle is less than 1mm, significantly less than conventional high-pressure fluid nozzles. In some embodiments, the outer wall of the high-pressure fluid nozzle has a conical section (point a to point B in fig. 5) on the front side, the arc rounding starts from 75% to 98% of the total length of the conical section of the outer wall of the high-pressure fluid nozzle, which is denoted by C, and ends up to 100% of the total length of the conical section of the outer wall (point B), in other words, the length L from the start point a of the conical section to the start point C of the arc rounding1Total length of conical section L1+L275% to 98% of (A to B). In some embodiments, the length L of the arcuate rounded portion2Total length of conical section L1+L2At least 2%, or at least 5%, or at least 10%, or at least 15%. In some embodiments, the length L of the arcuate rounded portion2Total length of conical section L1+L2Up to 25%, or up to 15%, or up to 10%.
With continued reference to FIG. 6, a fluid simulation is shown with the front side of the high pressure nozzle rounded (right) and without (left). It can be seen from fig. 6 that the swirl of the fluid on the front side of the high pressure nozzle (as shown in the box) is significantly reduced after the rounding process. Through calculation and analysis, the efficiency of the ejector can be improved by 1% by rounding the front side of the high-pressure nozzle, so that the efficiency of the whole heat recovery or work recovery system can be effectively improved. Thus, according to another aspect, there is provided a heat recovery or work recovery system comprising an ejector according to various embodiments.
In another aspect, a method of mixing fluids is provided, comprising: passing a first fluid through a high pressure fluid nozzle in a high pressure fluid passageway; causing a second fluid to be drawn in by a suction fluid passage comprising a suction chamber surrounding the high pressure fluid nozzle by means of kinetic energy of the first fluid; mixing the first fluid and the second fluid within the mixing chamber; and diffusing the mixed fluid in the diffusion chamber; wherein the method further comprises forming a leading end of the outer wall of the high pressure fluid nozzle with an arcuately rounded portion to reduce flow energy loss of the second fluid thereat. By the method, the vortex of the fluid in the ejector at the front end of the high-pressure fluid nozzle can be effectively reduced, so that the flow energy loss at the front end is reduced, and the efficiency of the ejector is improved.
In some embodiments, the method includes forming the arcuate radius portion of the front end of the high pressure fluid nozzle by a post-cut radius process, such as by mechanical grinding or laser cutting. In some embodiments, the outer wall of the high pressure fluid nozzle has a tapered section at a front side, the method comprising: starting the arc rounding portion from 75% to 98% of the total length of the conical section of the outer wall of the high-pressure fluid nozzle and ending up to 100% of the total length of the conical section of the outer wall. In some embodiments, the method includes forming a forwardmost thickness of an outer wall of the high-pressure fluid nozzle to be less than 1 mm. By computational analysis, the efficiency of the ejector may be increased by, for example, about 1% by rounding the front side of the high pressure nozzle by a method according to an embodiment of the invention.
The foregoing description of the specific embodiments has been presented only to illustrate the principles of the invention more clearly, and in which various features are shown or described in detail to facilitate an understanding of the principles of the invention. Various modifications or changes to the invention will be readily apparent to those skilled in the art without departing from the scope of the invention. It is to be understood that such modifications and variations are intended to be included within the scope of the present invention.

Claims (10)

1. An ejector for a heat recovery or work recovery system, the ejector comprising:
a high pressure fluid passage, the high pressure fluid passage comprising: a high pressure fluid inlet and a high pressure fluid nozzle;
a suction fluid passage including a suction fluid inlet and a suction chamber surrounding the high pressure fluid nozzle;
a mixing chamber in fluid communication with the high pressure fluid passage and the suction fluid passage, respectively; and
a diffusion chamber downstream of the mixing chamber;
wherein a front end of an outer wall of the high pressure fluid nozzle has an arc-shaped rounded portion.
2. The ejector for a heat or work recovery system of claim 1, wherein the outer wall of the high pressure fluid nozzle has a tapered section at a front side, the arc rounding starting from 75% to 98% of the total length of the tapered section of the outer wall of the high pressure fluid nozzle and ending up to 100% of the total length of the tapered section of the outer wall.
3. The ejector for a heat or work recovery system of claim 1 or 2, wherein the forward-most thickness of the outer wall of the high pressure fluid nozzle is less than 1 mm.
4. The ejector for a heat or work recovery system of claim 2, wherein the outer wall of the high pressure fluid nozzle comprises: the installation department, the concave arc section of installation department front side with concave arc section front side the toper section, arc radius part is located the foremost side of toper section, high-pressure fluid nozzle's inside includes convergent section, throat, divergent section and high-pressure fluid export in proper order.
5. The ejector for a heat recovery or work recovery system of claim 1 or 2, wherein the arc-shaped rounding portion of the front end of the high-pressure fluid nozzle is formed by a post-cutting rounding process, such as by laser cutting or mechanical grinding.
6. A heat or work recovery system, characterized in that it comprises an ejector according to any of claims 1-5.
7. A method of mixing fluids, the method comprising:
passing a first fluid through a high pressure fluid nozzle in a high pressure fluid passageway;
causing a second fluid to be drawn in by a suction fluid passage comprising a suction chamber surrounding the high pressure fluid nozzle by means of kinetic energy of the first fluid;
mixing the first fluid and the second fluid within the mixing chamber; and
diffusing the mixed fluid in the diffusion chamber;
wherein the method further comprises forming a leading end of the outer wall of the high pressure fluid nozzle with an arcuately rounded portion to reduce flow energy loss of the second fluid thereat.
8. The method of claim 7, comprising forming the arcuate radius portion of the front end of the high pressure fluid nozzle by a post-cut radius process, such as by laser cutting or mechanical grinding.
9. The method of claim 7 or 8, wherein the outer wall of the high pressure fluid nozzle has a tapered section at a front side, the method comprising: starting the arc rounding portion from 75% to 98% of the total length of the conical section of the outer wall of the high-pressure fluid nozzle and ending up to 100% of the total length of the conical section of the outer wall.
10. The method of claim 7 or 8, comprising forming a forwardmost side of an outer wall of the high-pressure fluid nozzle to be less than 1mm thick.
CN202010078559.1A 2020-02-03 2020-02-03 Heat recovery or work recovery system, ejector therefor and fluid mixing method Pending CN113203215A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010078559.1A CN113203215A (en) 2020-02-03 2020-02-03 Heat recovery or work recovery system, ejector therefor and fluid mixing method
EP20214609.8A EP3858472B1 (en) 2020-02-03 2020-12-16 Ejector for a heat recovery or work recovery system and fluid mixing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010078559.1A CN113203215A (en) 2020-02-03 2020-02-03 Heat recovery or work recovery system, ejector therefor and fluid mixing method

Publications (1)

Publication Number Publication Date
CN113203215A true CN113203215A (en) 2021-08-03

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CN (1) CN113203215A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI823675B (en) * 2022-11-14 2023-11-21 財團法人工業技術研究院 Pressure difference generating apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1000959B (en) * 1948-10-02 1957-01-17 Wilhelm Stiller Jet device with regulating device
JP4232484B2 (en) * 2003-03-05 2009-03-04 株式会社日本自動車部品総合研究所 Ejector and vapor compression refrigerator
SG155861A1 (en) * 2008-03-12 2009-10-29 Denso Corp Ejector
WO2012115698A1 (en) * 2011-02-23 2012-08-30 Carrier Corporation Ejector
CN109789381B (en) * 2016-10-03 2022-06-28 Dlh鲍尔斯公司 Gas-to-gas aspirator with improved entrainment efficiency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI823675B (en) * 2022-11-14 2023-11-21 財團法人工業技術研究院 Pressure difference generating apparatus

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EP3858472B1 (en) 2023-07-26

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