CN113175464B - Hydrodynamic cavitation equipment based on high-speed stable water flow generator - Google Patents
Hydrodynamic cavitation equipment based on high-speed stable water flow generator Download PDFInfo
- Publication number
- CN113175464B CN113175464B CN202110384485.9A CN202110384485A CN113175464B CN 113175464 B CN113175464 B CN 113175464B CN 202110384485 A CN202110384485 A CN 202110384485A CN 113175464 B CN113175464 B CN 113175464B
- Authority
- CN
- China
- Prior art keywords
- water tank
- water
- pressure
- connecting pipe
- hydrodynamic cavitation
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/0095—Influencing flow of fluids by means of injecting jet pulses of fluid wherein the injected fluid is taken from the fluid and re-injected again, e.g. synthetic jet actuators
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of hydrodynamic cavitation, in particular to hydrodynamic cavitation equipment based on a high-speed stable water flow generator. This hydrodynamic cavitation equipment based on high-speed stable water flow generator possesses the pressure stability in the water tank and removes the advantage that numerical value and rivers stability are good, in the use of reality, through water pump water delivery and high-pressure gas drive rivers establish the flow mode, the pressure control system who constitutes through the pressure switch in air compressor machine and the water pump simultaneously, the water yield in the dynamic control pump income water tank, indirect control water tank free space's pressure, make the pressure stability in the water tank at certain numerical value, thereby the stability of rivers has been improved, the turbulence degree of rivers has been reduced.
Description
Technical Field
The invention relates to the technical field of hydrodynamic cavitation, in particular to hydrodynamic cavitation equipment based on a high-speed stable water flow generator.
Background
Hydrodynamic cavitation means when the inside local pressure of water reduces, the formation of the inside vacuole of water, the process of growing and bursting, when rivers flow through perforated plate or venturi throat at a high speed, the pressure of rivers can reduce, take place the cavitation when the inside static pressure of water is less than the saturated vapor pressure of water under the corresponding temperature, it requires the water pump to have high lift and large-traffic simultaneously to realize hydrodynamic cavitation, and most water pumps on the market hardly satisfy these two conditions simultaneously, and can have high lift and large-traffic water pump price ratio again simultaneously, so will increase the cost of hydrodynamic cavitation equipment, be unfavorable for large-scale application.
In the existing hydrodynamic cavitation equipment, most of the equipment directly uses a water pump as a power source for driving water flow, so that the water flow is directly conveyed to a hydrodynamic cavitation section through the water pump for hydrodynamic cavitation, but the water pump can generate cavitation phenomenon due to high-speed rotation of an impeller in the operation process to cause stalling, the turbulence degree is high, unstable water flow is easily generated, and the research on the hydrodynamic cavitation needs stable flowing water flow to reduce the interference of uncertain factors, so that the mode of directly utilizing the water pump to drive the water flow is not beneficial to the research on the hydrodynamic cavitation.
Disclosure of Invention
The invention aims to provide a hydrodynamic cavitation device based on a high-speed stable water flow generator, which has the advantages that the pressure in a water tank is stable at a moving value and the stability of water flow is good, and solves the problems that most of the existing hydrodynamic cavitation devices directly use a water pump as a power source for driving water flow, so that the water flow is directly conveyed to a hydrodynamic cavitation section through the water pump for hydrodynamic cavitation, but the water pump is stalled due to cavitation phenomenon generated by high-speed rotation of an impeller in the operation process, the turbulence degree is high, unstable water flow is easily generated, and the research on the hydrodynamic cavitation needs stable flowing water flow to reduce the interference of uncertain factors, so that the mode of directly utilizing the water pump to drive the water flow is not favorable for researching the hydrodynamic cavitation.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hydrodynamic cavitation equipment based on high-speed stable water flow generator, includes the support frame, the left side fixedly connected with pressure water pitcher of support frame inner chamber, the right side fixedly connected with water pump of support frame inner chamber bottom, the right side fixedly connected with air compressor machine of support frame inner chamber bottom, the air compressor machine is located the left side of water pump, the air-supply line of air compressor machine is linked together through breather pipe and pressure water pitcher, the outlet pipe of water pump is linked together through pipeline and pressure water pitcher, and the surface of pipeline is provided with flow control valve one, the inlet tube intercommunication of water pump has connecting pipe one, the right side fixedly connected with transition water tank at support frame top, the one end of connecting pipe one runs through to the outside of support frame and is linked together with the transition water tank, the right side at pressure water pitcher surface top has rotor flow meter two through the pipeline intercommunication, one side and support frame fixed connection of rotor flow meter two, the bottom intercommunication on pressure water pitcher surface has connecting pipe two, the one end of connecting pipe two runs through to the outside and communicates there is rotor flow meter three, the top intercommunication of rotor flow meter three has connecting pipe three, the connecting pipe communicates with the one end of rotor flow meter is linked together with the transition water tank, the surface of connecting pipe two sets gradually one, the perforated plate, the water pressure sensor one, two, the water pressure sensor one, two, the perforated plate, two, the perforated plate and the pressure sensor and the perforated plate and the pressure sensor.
Preferably, the four corners at the top of the support frame are fixedly connected with protection pads, and the protection pads are made of silica gel.
Preferably, the size parameters of the pressure water tank are 60cm in height, 115mm in length, 2.0mm in wall thickness, 250L in capacity and 0.8MPa in pressure bearing capacity.
Preferably, both sides of the bottom of the surface of the pressure water tank are fixedly connected with fixing frames, and the bottom of each fixing frame is fixedly connected with the supporting frame.
Preferably, the surface of connecting pipe one is provided with rotor flow meter one, the both sides on connecting pipe two surfaces all are provided with flow control valve two and flow control valve three, water pressure sensor one, rhombus perforated plate one, water pressure sensor two, venturi, rhombus perforated plate two and pressure sensor all are located between flow control valve two and the flow control valve three.
Preferably, the size parameters of the transition water tank are 30cm in length, 65cm in width and 60cm in height, and the transition water tank is made of acrylic.
Preferably, the right side of the third rotameter is fixedly connected with two support rods, and one end, far away from the third rotameter, of each support rod is fixedly connected with the transition water tank.
Preferably, the surfaces of the second connecting pipe and the third connecting pipe are respectively sleeved with a first sealing ring and a second sealing ring, the top of the first sealing ring is fixedly connected with the pressure water tank, and the bottom of the second sealing ring is fixedly connected with the transition water tank.
Preferably, the connecting pipe III is in an inverted U shape, and the top of the transition water tank and the top of the rotameter III are located on the same axis.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention uses the cooperation of a pressure water tank, a water pump, an air compressor, a first flow control valve, a first connecting pipe, a transition water tank, a second rotor flow meter, a second connecting pipe, a third rotor flow meter, a first water pressure sensor, a first diamond porous plate, a second water pressure sensor, a venturi tube, a second diamond porous plate and a pressure sensor to stabilize the speed of water flow, thereby achieving the purpose of stabilizing the pressure of water flow in the water tank.
2. According to the invention, the protection pad is arranged to protect the corner of the support frame, the silica gel material is environment-friendly and good in heat insulation effect, and the fixing frame is arranged to support and fix the pressure water tank, so that the stability of the pressure water tank during working is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a top view of the present invention.
In the figure: 1. a support frame; 2. a pressure water tank; 3. a water pump; 4. an air compressor; 5. a first flow control valve; 6. a first connecting pipe; 7. a transition water tank; 8. a first rotor flow meter; 9. a rotor flow meter II; 10. a second connecting pipe; 11. a third rotor flowmeter; 12. a second flow control valve; 13. a first water pressure sensor; 14. a first rhombic porous plate; 15. a second water pressure sensor; 16. a venturi tube; 17. a second rhombic porous plate; 18. a pressure sensor; 19. a flow control valve III; 20. a protection pad; 21. a fixed mount; 22. a support bar; 23. a third connecting pipe; 24. a first sealing ring; 25. and a second sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1 to 3: the invention provides a high-speed stable water flow generator-based hydrodynamic cavitation device, which comprises a support frame 1, wherein four corners of the top of the support frame 1 are fixedly connected with protective pads 20, the protective pads 20 are made of silica gel, the protective pads 20 play a role in protecting the corners of the support frame 1 through the arrangement of the protective pads 20, then the silica gel is made of a material which is not only environment-friendly in working and good in heat insulation effect, the left side of the inner cavity of the support frame 1 is fixedly connected with a pressure water tank 2, the pressure water tank 2 has the size parameters of 60cm high, 115mm long, 2.0mm thick, 250L capacity and 0.8MPa pressure bearing capacity, two sides of the bottom of the surface of the pressure water tank 2 are fixedly connected with a fixing frame 21, the bottom of the fixing frame 21 is fixedly connected with the support frame 1, the pressure water tank 2 is supported and fixed through the arrangement of the fixing frame 21, so that the stability of the pressure water tank 2 in working is improved, the right side of the bottom of the inner cavity of the support frame 1 is fixedly connected with a water pump 3, the right side of the bottom of the inner cavity of the support frame 1 is fixedly connected with an air compressor 4, the air compressor 4 is positioned on the left side of the water pump 3, an air inlet pipe of the air compressor 4 is communicated with a pressure water tank 2 through a vent pipe, a water outlet pipe of the water pump 3 is communicated with the pressure water tank 2 through a pipeline, the surface of the pipeline is provided with a flow control valve I5, a water inlet pipe of the water pump 3 is communicated with a connecting pipe I6, the right side of the top of the support frame 1 is fixedly connected with a transition water tank 7, the size parameters of the transition water tank 7 are 30cm long, 65cm wide and 60cm high, the material of the transition water tank is acrylic, the weather resistance and the high temperature performance of the transition water tank 7 are improved through the material of the transition water tank 7, the transparency of the transition water tank 7 is high, a user can conveniently observe the transparent water tank 7, one end of the connecting pipe I6 penetrates through the outer side of the support frame 1 and is communicated with the transition water tank 7, the right side of the top of the surface of the pressure water tank 2 is communicated with a second rotor flow meter 9 through a pipeline, one side of the second rotor flow meter 9 is fixedly connected with the support frame 1, the bottom of the surface of the pressure water tank 2 is communicated with a second connecting pipe 10, the surfaces of the second connecting pipe 10 and the third connecting pipe 23 are respectively sleeved with a first sealing ring 24 and a second sealing ring 25, the top of the first sealing ring 24 is fixedly connected with the pressure water tank 2, the bottom of the second sealing ring 25 is fixedly connected with the transition water tank 7, the sealing performance between the transition water tank 7 and the third connecting pipe 23 and between the pressure water tank 2 and the second connecting pipe 10 is enhanced through the matching use of the first sealing ring 24 and the second sealing ring 25, the condition that water leaks outwards is prevented, one end of the second connecting pipe 10 penetrates through the outer side of the support frame 1 and is communicated with a third rotor flow meter 11, and the right side of the third rotor flow meter 11 is fixedly connected with two support rods 22, one end of the support rod 22 far away from the third rotor flow meter 11 is fixedly connected with the transition water tank 7, the effect of fixing the third rotor flow meter 11 is achieved through the arrangement of the support rod 22, the stability of the third rotor flow meter 11 in working is further improved, the connecting pipe three 23 is in an inverted U-shaped structure, the top of the transition water tank 7 and the top of the third rotor flow meter 11 are located on the same axis, the effect of preventing the backflow situation of the transition water tank 7 is achieved through the matching use of the shape of the connecting pipe 23 and the positions of the transition water tank 7 and the third rotor flow meter 11, the stability of water flow is improved, the connecting pipe three 23 is communicated with the top of the third rotor flow meter 11, one end, far away from the third rotor flow meter 11, of the connecting pipe three 23 is communicated with the transition water tank 7, and a first water pressure sensor 13, a first diamond-shaped porous plate 14 and a second water pressure sensor 15 are sequentially arranged on the surface of the connecting pipe two 10 from left to right, the Venturi tube 16, the second diamond-shaped porous plate 17 and the pressure sensor 18 are arranged, the first rotameter 8 is arranged on the surface of the first connecting tube 6, the second flow control valve 12 and the third flow control valve 19 are arranged on two sides of the surface of the second connecting tube 10, the first water pressure sensor 13, the first diamond-shaped porous plate 14, the second water pressure sensor 15, the Venturi tube 16, the second diamond-shaped porous plate 17 and the pressure sensor 18 are located between the second flow control valve 12 and the third flow control valve 19, and the effect of regulating and controlling the flow rate of the pressure water tank 2 conveyed to the transition water tank 7 and the flow rate of the transition water tank 7 conveyed to the pressure water tank 2 is achieved through the cooperation of the first rotameter 8, the second flow control valve 12 and the third flow control valve 19, and the purpose of improving the water flow stability is achieved.
The working principle is as follows: when the invention is used, a user pumps water from the transition water tank 7 through the water pump 3 and then conveys the water to the pressure water tank 2 and the transition water tank 7 after pressurizing, one end of the connecting pipe I6 is connected with the transition water tank 7, the other end of the connecting pipe I6 is communicated with the water pump 3 and the pressure water tank 2 through a three-way pipe and is used for adjusting the flow rate conveyed to the pressure water tank 2 by the water pump 3, the rotor flow meter II 9 is connected between the pressure water tank 2 and the water pump 3 and is used for measuring the flow rate of the water conveyed to the pressure water tank 2 by the water pump 3, the air compressor 4 charges high-pressure gas into the pressure water tank 2 through an air pipe for pressurizing, the water in the pressure water tank 2 flows out from a pipeline below the bottom of the tank and flows through the flow control valve II 12, the water pressure sensor I13, the diamond-shaped porous plate I14, the water pressure sensor II 15, the Venturi tube 16, the diamond-shaped porous plate II 17, the pressure sensor 18 and the flow control valve III 19 along the pipeline, the flow control valve II 12 and the flow control valve III 19 are connected with a pipeline through an inner-outer thread connector, the water pressure sensor I13, the water pressure sensor I15 and the pressure sensor 18 are connected at the connection position through an inner thread connector, one end of the rhombic porous plate I14 is connected with the pipeline through a flange, the other end of the rhombic porous plate I14 is connected with the Venturi tube 16 through a flange, the Venturi tube 16 and the rhombic porous plate II 17 are connected in a flange mode, the rotor flow meter II 9 and the rotor flow meter III 11 are both connected with the pipeline through flanges, the flow control valve II 12 and the flow control valve III 19 are matched for use, the effects of regulating and controlling the flow of the pressure water tank 2 conveyed to the transition water tank 7 and the flow of the transition water tank 7 conveyed to the pressure water tank 2 are achieved, the purpose of improving the water flow stability is achieved, and the rhombic porous plate I14 and the rhombic porous plate II 17 are matched for use, when the flow velocity is increased, the device has the function of forming a plurality of jet flows for water flow, and finally flows into the inner cavity of the transition water tank 7 through the three rotameters 11, so that closed water circulation is formed.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a hydrodynamic cavitation equipment based on high-speed stable water flow generator, includes support frame (1), its characterized in that: the left side fixedly connected with pressure water pitcher (2) of support frame (1) inner chamber, the right side fixedly connected with water pump (3) of support frame (1) inner chamber bottom, the right side fixedly connected with air compressor machine (4) of support frame (1) inner chamber bottom, air compressor machine (4) are located the left side of water pump (3), the air-supply line of air compressor machine (4) is linked together through breather pipe and pressure water pitcher (2), the outlet pipe of water pump (3) is linked together through pipeline and pressure water pitcher (2), and the surface of pipeline is provided with flow control valve (5), the inlet tube intercommunication of water pump (3) has connecting pipe (6), the right side fixedly connected with transition water tank (7) at support frame (1) top, the one end of connecting pipe (6) runs through to the outside of support frame (1) and is linked together with transition water tank (7), the right side at pressure water pitcher (2) surface top has rotameter two (9) through pipeline intercommunication, one side and support frame (1) fixed connection of rotameter two (9), the bottom intercommunication of pressure pitcher (2) has connecting pipe (10) to the three-way flowmeter (11), one end of the third connecting pipe (23) far away from the third rotameter (11) is communicated with the transition water tank (7), and a first water pressure sensor (13), a first rhombic porous plate (14), a second water pressure sensor (15), a Venturi tube (16), a second rhombic porous plate (17) and a pressure sensor (18) are sequentially arranged on the surface of the second connecting pipe (10) from left to right.
2. The hydrodynamic cavitation device based on high-speed stable flow generator as claimed in claim 1, characterized by: the equal fixedly connected with protection pad (20) in four corners at support frame (1) top, the material of protection pad (20) is silica gel.
3. The hydrodynamic cavitation device based on high-speed stable flow generator as claimed in claim 1, characterized by: the size parameters of the pressure water tank (2) are 60cm high, 115mm long, 2.0mm wall thickness, 250L capacity and 0.8MPa pressure bearing capacity.
4. The hydrodynamic cavitation device based on high-speed stable flow generator as claimed in claim 1, characterized by: the pressure water tank (2) is characterized in that fixing frames (21) are fixedly connected to two sides of the bottom of the surface of the pressure water tank (2), and the bottoms of the fixing frames (21) are fixedly connected with the supporting frame (1).
5. The hydrodynamic cavitation device based on high-speed stable flow generator as claimed in claim 1, characterized by: the surface of connecting pipe (6) is provided with rotameter (8), the both sides on connecting pipe two (10) surfaces all are provided with flow control valve two (12) and flow control valve three (19), water pressure sensor (13), rhombus perforated plate one (14), water pressure sensor two (15), venturi (16), rhombus perforated plate two (17) and pressure sensor (18) all are located between flow control valve two (12) and flow control valve three (19).
6. The hydrodynamic cavitation device based on high-speed stable flow generator as claimed in claim 1, characterized by: the size parameters of the transition water tank (7) are 30cm in length, 65cm in width and 60cm in height, and the transition water tank is made of acrylic.
7. The hydrodynamic cavitation device based on a high-speed stable water flow generator according to claim 1, characterized in that: two bracing pieces (22) of right side fixedly connected with of rotameter three (11), the one end and the transition water tank (7) fixed connection of rotameter three (11) are kept away from in bracing piece (22).
8. The hydrodynamic cavitation device based on a high-speed stable water flow generator according to claim 1, characterized in that: the surface of the second connecting pipe (10) and the surface of the third connecting pipe (23) are respectively provided with a first sealing ring (24) and a second sealing ring (25), the top of the first sealing ring (24) is fixedly connected with the pressure water tank (2), and the bottom of the second sealing ring (25) is fixedly connected with the transition water tank (7).
9. The hydrodynamic cavitation device based on a high-speed stable water flow generator according to claim 1, characterized in that: the connecting pipe III (23) is in an inverted U shape, and the top of the transition water tank (7) and the top of the rotameter III (11) are located on the same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110384485.9A CN113175464B (en) | 2021-04-09 | 2021-04-09 | Hydrodynamic cavitation equipment based on high-speed stable water flow generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110384485.9A CN113175464B (en) | 2021-04-09 | 2021-04-09 | Hydrodynamic cavitation equipment based on high-speed stable water flow generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113175464A CN113175464A (en) | 2021-07-27 |
| CN113175464B true CN113175464B (en) | 2022-11-11 |
Family
ID=76924930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110384485.9A Active CN113175464B (en) | 2021-04-09 | 2021-04-09 | Hydrodynamic cavitation equipment based on high-speed stable water flow generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113175464B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306076A (en) * | 2020-02-26 | 2020-06-19 | 江苏大学 | Device and method for testing backflow vortex cavitation of vane pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070257381A1 (en) * | 2006-05-08 | 2007-11-08 | Chuang Shuo W | Cavitation generating system |
| CN103149011B (en) * | 2013-03-06 | 2015-04-15 | 中国船舶重工集团公司第七○二研究所 | Test device and method for forming high-speed stable flow field |
| US20160290372A1 (en) * | 2015-04-01 | 2016-10-06 | Deere & Company | Fluid circulation system |
| KR101821763B1 (en) * | 2015-08-27 | 2018-01-25 | 한국해양과학기술원 | Super Cavitation Generating System With Bubble Collecting Device And Medium-Sized high Speed tunnel |
| CN107389305B (en) * | 2017-09-21 | 2023-09-19 | 清华大学 | Convenient and easy-to-use multi-working-condition temperature-controllable cavitation visual experimental device and experimental method |
| CN108844713B (en) * | 2018-04-11 | 2020-05-19 | 西安交通大学 | Adjustable ultrahigh-flow-rate large-flow water tunnel system and adjusting method |
-
2021
- 2021-04-09 CN CN202110384485.9A patent/CN113175464B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306076A (en) * | 2020-02-26 | 2020-06-19 | 江苏大学 | Device and method for testing backflow vortex cavitation of vane pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113175464A (en) | 2021-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214276610U (en) | Flow rate control shell-and-tube heat exchanger | |
| CN113175464B (en) | Hydrodynamic cavitation equipment based on high-speed stable water flow generator | |
| CN209054731U (en) | A kind of air conditioner refrigerating air exhausting device with heat recovery function | |
| CN209690116U (en) | Continuous moving flat boundary layer experimental provision in a kind of power-law fluid slot | |
| CN210664010U (en) | Cooling device used in fermented glutinous rice production process | |
| CN2301566Y (en) | Case of low cavitation centrifugal pump for water pumping room capable of counter flowing | |
| CN207826715U (en) | A kind of water-cooled induction sealing machine | |
| CN107726509A (en) | A kind of dynamic spray water distribution system | |
| CN207393565U (en) | It is a kind of without sealing self-controlling self-priming pump | |
| CN109883886A (en) | Continuous moving flat boundary layer experimental provision in a kind of power-law fluid slot | |
| CN113549527A (en) | Large soy sauce fermentation tank with single-stage water pressure series jacket | |
| CN208532403U (en) | A kind of aerator of sewage treatment | |
| CN219223407U (en) | Volumetric heat exchanger with stirring device | |
| CN207975043U (en) | A kind of single-stage double-suction middle-opening pump runner of buffering radial load | |
| CN205714792U (en) | A kind of pipeline pump priming device | |
| CN212132875U (en) | Superconductive nanometer heat supply unit | |
| CN216785815U (en) | Aerobic tank defoaming device of sewage treatment biochemical system | |
| CN217682317U (en) | Constant-pressure variable-frequency horizontal pump | |
| CN208832773U (en) | A kind of steam condensate (SC) Adjustable Heat Pump | |
| CN214887770U (en) | Water pump for synthetic circulating water station | |
| CN213810811U (en) | Geothermal energy heat exchange device | |
| CN213335645U (en) | DC-like cooling water supply system | |
| CN219345022U (en) | Tubular air supply device | |
| CN216307436U (en) | Vacuum air exhaust device convenient to connecting pipeline | |
| CN2343412Y (en) | Low-level condensation steam-water combined jet vacuum pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |